Regenerative Brakes Patents (Class 303/152)
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Patent number: 12128860Abstract: A brake system for actuating front and rear wheel brakes includes a reservoir and a master cylinder operable by actuation of a brake pedal connected to the master cylinder to generate brake actuating pressure at a first output for hydraulically actuating the front wheel brakes. A power transmission unit is configured for selectively providing pressurized hydraulic fluid for actuating the front wheel brakes. A pair of rear brake motors selectively electrically actuate respective rear wheel brakes. An electronic control unit controls at least one of the power transmission unit and the rear brake motors. A two-position three-way valve is hydraulically connected with the master cylinder and the power transmission unit and with the front wheel brakes. The three-way valve selectively controls hydraulic fluid flow from a chosen one of the master cylinder and the power transmission unit to at least one of the front wheel brakes.Type: GrantFiled: March 1, 2021Date of Patent: October 29, 2024Assignee: ZF ACTIVE SAFETY US INCInventor: Blaise Joseph Ganzel
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Patent number: 12115963Abstract: A brake system includes a reservoir and a master cylinder operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable to generate brake actuating pressure at an output for hydraulically actuating a pair of hydraulically actuated wheel brakes in a manual push-through operation. A power transmission unit is configured to selectively generate pressurized hydraulic fluid for actuating the pair of hydraulically actuated wheel brakes. First and second two-position three-way valves are hydraulically connected to respective ones of the pair of hydraulically operated brakes and to both the master cylinder and the power transmission unit. The first and second three-way valves each are configured to selectively switch the respective hydraulically operated brake to receive fluid from a selected one of the master cylinder, in a backup braking mode, and the power transmission unit, in a normal non-failure braking mode.Type: GrantFiled: August 12, 2021Date of Patent: October 15, 2024Assignee: ZF ACTIVE SAFETY US INC.Inventor: Blaise J. Ganzel
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Patent number: 12055455Abstract: Methods and devices for estimating a residual torque between the braked (e.g., brake disk or drum) and braking elements (e.g., support plate or friction block) of a vehicle based on acquired and reference temperatures, where the reference temperature can be calculated using an N-dimensional calculation model with an N-dimensional vector of input variables, and where said N-dimensional calculation model can be an analytical or experimental characterization of the thermal behavior of the brake.Type: GrantFiled: June 22, 2023Date of Patent: August 6, 2024Assignee: ITT ITALIA S.R.L.Inventors: Pietro Roberto Macchi, Umberto Vignolo, Marco Terranova, Stefano Serra
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Patent number: 12054074Abstract: System and method for operating a transport refrigeration system including: a trailer system including a vehicle connected to a transport container; an electric generation device operably coupled to a wheel axle of the trailer system, the electric generation device configured to generate electrical power from the rotational energy of the wheel axle to charge an energy storage device when the electric generation device is activated; an energy management system providing power to the transportation refrigeration unit of the trailer system, the energy management system including an energy controller in communication with at least one of the electric generation device, the energy storage device, an electronic braking unit; an anti-lock braking system including the electronic braking unit in communication with the energy controller, wherein at least one of the electronic braking unit and the energy controller is configured to modify the operation of the electric generation device.Type: GrantFiled: September 28, 2021Date of Patent: August 6, 2024Assignee: CARRIER CORPORATIONInventor: Gael Ducher
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Patent number: 12049224Abstract: An apparatus for controlling a change in speed of a vehicle, includes: an auxiliary braking signal unit receiving an auxiliary braking related signal from a driver; a vehicle control unit receiving the auxiliary braking related signal from the auxiliary braking signal unit while controlling the vehicle; a motor control unit receiving a command for auxiliary braking from the vehicle control unit and decelerating the vehicle by regenerative braking of a driving motor; a transmission control unit controlling a transmission during deceleration of the vehicle and transmitting information of whether a change in speed is performed to the vehicle control unit; and a braking control unit connected to a brake through a fluid pressure line, and controlling the brake so that the brake applies braking pressure to a wheel by an amount of reduction in regenerative braking torque when the transmission is downshifted.Type: GrantFiled: February 10, 2022Date of Patent: July 30, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventor: Jung Hoon Jin
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Patent number: 12030469Abstract: A regenerative braking system for a vehicle includes a means 13 for storing details of one or more deceleration profiles for the vehicle; means for comparing 13, arranged to compare a current braking manoeuvre with the or a selected stored deceleration profile which generates an output signal, during the manoeuvre, representative of any deviation of the deceleration profile of the current braking manoeuvre from the ideal deceleration profile with which it is compared. This output can be used to drive a display 14 to provide feedback to a driver as to the efficiency of a braking manoeuvre. Multiple ideal deceleration profiles may be stored and the system arranged to compare a current braking manoeuvre with the most relevant stored profile. Profiles may be stored in association with spatial, temporal and/or environmental information.Type: GrantFiled: January 19, 2018Date of Patent: July 9, 2024Assignee: Bentley Motors LimitedInventors: Deaglan O'Meachair, Matthew Crumpton
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Patent number: 11878667Abstract: The invention relates to a method for decelerating a motor vehicle during emergency braking, wherein the entire emergency braking is automatically carried out by a longitudinal dynamics system of the motor vehicle, wherein, for emergency braking, a total braking torque is automatically generated by the longitudinal dynamics system of the motor vehicle, and, for this purpose, a first braking torque is generated at least as a proportion of the total braking torque by an electric motor of an electric drive of the motor vehicle in a time interval beginning with the automatic initiation of the emergency braking and shorter than the total duration of the emergency braking, in which time interval the total braking torque cannot yet be generated solely by a service brake system of the longitudinal dynamics system. The invention also relates to a motor vehicle.Type: GrantFiled: March 30, 2020Date of Patent: January 23, 2024Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventor: Bastian Witte
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Patent number: 11866040Abstract: A movement control system is a movement control system of a moving body configured to be moved by a driving system. The movement control system includes a planner, a corrector, and a controller. The planner is configured to execute an update process of updating a control plan of the driving system in accordance with reference information including first external environment information regarding an external environment of the moving body. The corrector is configured to execute, at a second timing between a plurality of first timings at each of which the update process is executed, a correction process of correcting the control plan in accordance with second external environment information regarding the external environment of the moving body. The second external environment information is different from the first external environment information. The controller is configured to control the driving system in accordance with the control plan.Type: GrantFiled: July 16, 2021Date of Patent: January 9, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Takeshi Uemura
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Patent number: 11820234Abstract: A powertrain for a vehicle may include a motor; a planetary gear set mounted to rotate parallel to a rotation shaft of the motor so that one rotation element may exchange power with the motor; a front wheel driveshaft engaged to the planetary gear set to receive power from another rotation element of the planetary gear set and to transfer a rotating force to a front wheel coupled to the front wheel driveshaft; and a rear wheel driveshaft engaged to the planetary gear set and mounted to receive power from the other rotation element of the planetary gear set to rotate parallel to the rotation shaft of the motor, and to transfer a rotating force to a rear wheel coupled to the rear wheel driveshaft.Type: GrantFiled: September 28, 2020Date of Patent: November 21, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Min Ho Chae, Soon Ki Eo, Chon Ok Kim
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Patent number: 11740145Abstract: Methods and devices for estimating a residual torque between the braked (e.g., brake disk or drum) and braking elements (e.g., support plate or friction block) of a vehicle based on acquired and reference temperatures, where the reference temperature can be calculated using an N-dimensional calculation model with an N-dimensional vector of input variables, and where said N-dimensional calculation model can be an analytical or experimental characterization of the thermal behavior of the brake.Type: GrantFiled: May 23, 2022Date of Patent: August 29, 2023Assignee: ITT Italia S.r.l.Inventors: Pietro Roberto Macchi, Umberto Vignolo, Marco Terranova, Stefano Serra
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Patent number: 11707988Abstract: A method for distributing a braking torque requested by a driver over the axles of a motor vehicle. The wheels of the first axle are associated with a first friction brake device and a first electrical machine having a first efficiency and the wheels of the second axle are associated with a second friction brake device and a second electrical machine having a second efficiency, in which, according to the method, the allocation of the requested braking torque over the first and/or second axle and the determination of the components of the recuperation torques to be provided by the first and/or second electrical machine of the requested braking torque is carried out taking into consideration the current driving stability of the motor vehicle.Type: GrantFiled: September 25, 2019Date of Patent: July 25, 2023Assignee: AUDI AGInventor: Matthias Geuß
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Patent number: 11643062Abstract: A diagnostic method to identify a leak in a three-way valve for a vehicle brake system having a remote master cylinder which includes the steps of: (1) providing a pedal simulator having pressure medium; (2) de-energizing a secondary three-way valve; (3) retracting a dual acting plunger to the home position to drop the pressure in the boost circuit to zero while also monitoring the pressure at the output of a fluid separator via a secondary master cylinder pressure sensor; (4) determining a rate of pressure reduction at the output of a fluid separator via a secondary master cylinder pressure sensor; and (5) identifying a leak in at least one of a primary three-way valve and the secondary three way valve if the rate of pressure reduction is equal to or higher than a pre-determined rate.Type: GrantFiled: November 19, 2019Date of Patent: May 9, 2023Assignee: ZF Active Safety US Inc.Inventor: Blaise Ganzel
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Patent number: 11577728Abstract: A vehicle control device includes a controller configured to control operation of a braking device and operation of a driving motor. The controller can switch between a normal mode of controlling acceleration/deceleration in accordance with a driver's acceleration/deceleration operation, and a cruise control mode of maintaining the vehicle speed at a target speed without being dependent on the acceleration/deceleration operation. The controller is configured to execute braking control, including braking by the braking device and regenerative braking by the driving motor, during the cruise control mode in accordance with a change in a vehicle traveling condition.Type: GrantFiled: October 23, 2020Date of Patent: February 14, 2023Assignee: SUBARU CORPORATIONInventor: Shoto Arai
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Patent number: 11485334Abstract: A method and system for braking a vehicle using supplemental deceleration provided by an electronic parking brake. The method includes detecting a reduced function state of an integrated braking system; detecting a brake pedal input from an operator of the vehicle; and automatically generating a braking force via the electronic parking brake based on the brake pedal input and the reduced function state.Type: GrantFiled: May 24, 2018Date of Patent: November 1, 2022Assignee: Robert Bosch GmbHInventors: E. Michael Huff, Ryan A. Kuhlman, Christian Meister
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Patent number: 11458846Abstract: A brake force control apparatus allocates all of required brake force to a target front wheel friction brake force when the required brake force is equal to or smaller than a maximum regeneration brake force. The apparatus decreases the target regeneration brake force by a first predetermined amount at a first time point at which a front wheel acceleration varies from a value larger than a first acceleration threshold to a value equal to or smaller than the first acceleration threshold. The apparatus increases the target regeneration brake force in such a manner that the target regeneration brake force coincides with the required brake force, if the front wheel acceleration becomes larger than a second acceleration threshold in a period from the first time point to a second time point at which a predetermined time elapses from the first time point.Type: GrantFiled: May 6, 2020Date of Patent: October 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshitaka Fujita
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Patent number: 11440518Abstract: A vehicle braking system includes: a master cylinder; a slave cylinder communicated with the master cylinder; a vehicle behavior stabilizer communicated with the slave cylinder; first and second master cut valves, each being a normally closed valve for opening and closing a fluid flow path between the master cylinder and the slave cylinder, for making hydraulic pressures in the slave cylinder and the vehicle behavior stabilizer work in a valve closing direction; a pressure sensor for detecting the hydraulic pressure in the vehicle behavior stabilizer; and a piston controller for advancing first and second slave pistons in the slave cylinder when the hydraulic pressure on the vehicle behavior stabilizer side, detected by the pressure sensor, exceeds a predetermined value, and returning the pistons at a predetermined timing.Type: GrantFiled: August 7, 2019Date of Patent: September 13, 2022Assignee: HONDA MOTOR CO., LTD.Inventor: Soichiro Ueura
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Patent number: 11440414Abstract: An electric vehicle without a propeller shaft including a rotating machine selectively functioning as an electric motor and a generator, configured to serve as a drive force source in the vehicle when the rotating machine functions as the electric motor, and functioning as the generator during running of the vehicle to thereby generate a regenerative brake force, and a wheel brake disposed on a wheel, used as a service brake, and generating a braking force corresponding to a brake request amount during running of the vehicle, the electric vehicle comprising: a third braking device disposed in a power transmission path between the rotating machine and a drive wheel to generate a braking force with a braking method other than regeneration during running of the vehicle.Type: GrantFiled: October 29, 2019Date of Patent: September 13, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shin Kurosaki
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Patent number: 11325573Abstract: A rear wheel regenerative braking control system for vehicle, may include a brake controller; a vehicle controller; a hydraulic controller; and a motor controller, wherein the system and the method may maximize an amount of rear wheel regenerative braking while easily securing braking stability of a vehicle.Type: GrantFiled: September 27, 2017Date of Patent: May 10, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Gab Bae Jeon
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Patent number: 11273713Abstract: A vehicle includes an axle, electric machine, friction, brakes, and a controller. The axle has an input shaft to an open differential and output shaft extending out of the open differential. The electric machine is secured to the input shaft and wheels are secured to the output shafts. The controller is programmed to, in response to an anti-locking braking event, generate a signal indicative of a total torque demand to brake the vehicle based on a difference between a desired and an actual wheel slip ratio, adjust a regenerative braking torque of the electric machine based on signal and a regenerative braking weighting coefficient to maintain or drive actual wheel slip toward the desired wheel slip, and adjust a friction braking torque of the friction brakes based on the signal and a friction braking weighting coefficient to drive actual wheel slip at or toward the desired wheel slip.Type: GrantFiled: September 19, 2019Date of Patent: March 15, 2022Assignee: Ford Global Technologies, LLCInventors: Yixin Yao, Yanan Zhao, Mark Steven Yamazaki
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Patent number: 11208106Abstract: A method for inertia drive control with torque sharing of an eco-friendly vehicle includes when an event in which the eco-friendly vehicle being decelerated with the inertia drive control is detected; calculating, by a controller, a distance variable and a speed variable according to the event; calculating, by the controller, a deceleration torque, which is required for an inertia drive of the eco-friendly vehicle, by dividing into a motor torque and a hydraulic braking torque; and performing, by the controller, inertia drive cooperative control in which the deceleration is performed without driver intervention with motor control through the motor torque and hydraulic braking control through hydraulic braking torque.Type: GrantFiled: April 5, 2019Date of Patent: December 28, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jee-Wook Huh, Teh-Hwan Cho
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Patent number: 11180125Abstract: A vehicle includes an axle, an electric machine, a first wheel, a second wheel, a first friction brake, a second friction brake, and a controller. The controller is programmed to, in response to and during an anti-locking braking event, generate first and second signals indicative of a braking torque demand at the first and second wheels, respectively, based on a difference between a desired wheel slip ratio and an actual wheel slip ratio of the first and second wheels, respectively, adjust a regenerative braking torque of the electric machine based on a product of the first signal and a regenerative braking weighting coefficient, adjust a first friction braking torque based on a product of the first signal and a friction braking weighting coefficient, and adjust a second friction braking torque based on the second signal and dynamics of the first and second output shafts.Type: GrantFiled: September 19, 2019Date of Patent: November 23, 2021Assignee: Ford Global Technologies, LLCInventors: Yixin Yao, Yanan Zhao, Mark Steven Yamazaki
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Patent number: 11130403Abstract: A vehicle comprising, an accelerator pedal, a brake pedal, an electric machine, and a controller. The electric machine is configured to propel the vehicle and to brake the vehicle via regenerative braking. The controller is programmed to, in response to releasing the accelerator pedal, increase a regenerative braking torque of the electric machine to a first value. The controller is further programmed to, in response to depressing the brake pedal, increase the regenerative braking torque of the electric machine from the first value to a second value. The controller is further programmed to, in response to a speed of the vehicle decreasing to less than a first threshold, decrease the regenerative braking torque of the electric machine from the second value to the first value.Type: GrantFiled: September 28, 2020Date of Patent: September 28, 2021Assignee: Ford Global Technologies, LLCInventors: Brandon Jay Woodland, Sergey Gennadievich Semenov
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Patent number: 11072319Abstract: A device for braking a vehicle includes an actuator configured to control a brake of the vehicle for braking the vehicle. The device further includes a first battery configured to be electrically connected to the actuator via a first switching device and to supply energy to the actuator. The device further includes a second battery configured to be electrically connected to the actuator via a second switching device and to supply energy to the actuator. The device further includes a controller configured to detect a state of the energy supplied to the actuator by the first battery and switch the second switching device to electrically connect the second battery to the actuator instead of the first battery in order to supply energy to the actuator when the state indicates that a need exists.Type: GrantFiled: April 18, 2019Date of Patent: July 27, 2021Assignee: Robert Bosch GmbHInventors: Norbert Kearney, Steffen Zechmeister, Steffen Ackermann, Thorsten Huck, Volker Weeber
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Patent number: 11059464Abstract: In a method for controlling a hydraulic braking system, in the event of a failure of a primary brake actuator system, a secondary brake actuator system is activated.Type: GrantFiled: October 10, 2017Date of Patent: July 13, 2021Assignee: Robert Bosch GmbHInventors: Alfred Strehle, Mirko Brand, Thomas Schmidt
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Patent number: 11052885Abstract: A system and a method for estimating the coefficient of friction of a hydraulic brake system with axle-individual pressure buildup of a motor vehicle. In addition, a system and to a method for setting the target braking torque of a hydraulic braking system with axle-individual buildup of a motor vehicle in order to obtain a desired actual braking torque.Type: GrantFiled: August 22, 2019Date of Patent: July 6, 2021Assignee: AUDI AGInventor: Matthias Geuß
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Patent number: 11001243Abstract: Method for operating a brake system of a motor vehicle having a hydraulic service brake device with hydraulically actuated wheel brakes on at least one front axle of the motor vehicle, and a parking brake device with wheel brakes, which can be actuated in each case by an electromechanical actuator, on a rear axle of the motor vehicle, wherein a motor vehicle actual longitudinal deceleration is measured, wherein during a braking operation by the hydraulic service brake device a braking operation is carried out by the parking brake device while the motor vehicle is traveling, wherein a motor vehicle setpoint longitudinal deceleration which is to be achieved is determined, and the electromechanical actuators of the parking brake device are actuated in such a way that the motor vehicle actual longitudinal deceleration is adjusted to the motor vehicle setpoint longitudinal deceleration.Type: GrantFiled: February 13, 2017Date of Patent: May 11, 2021Inventors: Marco Besier, Georg Roll
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Patent number: 10974603Abstract: The invention relates to a method for controlling a braking system for setting a total braking torque distribution between a first and a second axle of a motor vehicle. The braking system includes a friction braking device and a recuperative braking device. The braking system has a total braking torque composed of a friction braking torque portion and a recuperative braking torque portion. The method include determining, for one axle, a minimal recuperation torque, which is set on that axle, and remains set on that axle for all driving situations as a recuperative braking torque portion.Type: GrantFiled: December 13, 2018Date of Patent: April 13, 2021Assignee: Audi AGInventors: Michael Wein, Matthias Geuß
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Patent number: 10960889Abstract: A gear change method for an electric transmission system (1), the electric transmission system (1) including an electric machine (2), a multi-stage transmission (3) drivingly connected downstream from the electric machine (2) and having interruption of tractive force, and at least one brake (4) for braking a vehicle wheel (5), the method including transferring the brake (4) out of an inoperative condition into a readiness condition during a gear change operation of the transmission (3).Type: GrantFiled: March 4, 2019Date of Patent: March 30, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventors: Johannes Kaltenbach, Matthias Horn
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Patent number: 10933874Abstract: A braking control system and a braking control method for an environmental-friendly vehicle may forcibly discharge a part of the current charge amount of a battery when it is determined that the current charge amount of the battery reaches a maximum charge amount state by regenerative braking to exclude a regenerative braking prohibition condition according to the maximum charge amount state of the battery. The braking of the vehicle is thereby always performed by a sum of the regenerative braking amount and the hydraulic braking amount to reduce a braking load concentrated on a disk of a hydraulic braking brake.Type: GrantFiled: April 4, 2019Date of Patent: March 2, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Sung Hyun Cho
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Patent number: 10919539Abstract: In a method for operating a vehicle control system having at least two actuators acting upon a vehicle state variable, a first actuator is initially activated, and at a time interval prior to arrival at a boundary condition regarding the first actuator, a switchover is made to a second actuator.Type: GrantFiled: April 7, 2017Date of Patent: February 16, 2021Assignee: Robert Bosch GmbHInventors: Konrad Hofmann, Charlotte Grinenval, Stefan Wickert
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Patent number: 10919506Abstract: An electric brake system and a method for controlling the same are disclosed. The electric brake system includes a pedal sensor configured to sense a pedal effort, a calculator configured to calculate a target brake pressure based on the sensed pedal effort, a first hydraulic circuit configured to form a brake pressure of at least one rear wheel or form a rear-wheel regenerative braking pressure, a second hydraulic circuit configured to form a brake pressure of at least one front wheel, and a controller configured to perform rear-wheel regenerative braking during deceleration of a vehicle, perform cooperative control of a front-wheel hydraulic pressure when a rear-wheel regenerative braking pressure reaches a maximum regenerative braking pressure, increase the front-wheel hydraulic pressure to a target brake pressure when the rear-wheel regenerative braking is released, and then increase a rear-wheel hydraulic pressure.Type: GrantFiled: June 20, 2018Date of Patent: February 16, 2021Assignee: MANDO CORPORATIONInventor: In Hye Park
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Patent number: 10906525Abstract: The control device for the hybrid vehicle including: an engine; a first motor generator which generates electric power by power of the engine; a battery; and a second motor generator connected to driving wheels and driven by supplying electric power from at least one of the battery and the first motor generator. In the control device, a braking control, which drives the first motor generator as an electric motor by regenerative power obtained by operating the second motor generator as a generator at the time of braking of the hybrid vehicle, and in which the engine is utilized as a load of the first motor generator, is executed when a variable representing a charging state of the battery by a level of a value is equal to or greater than a predetermined value and use of a mechanical brake of the hybrid vehicle is restricted.Type: GrantFiled: March 15, 2018Date of Patent: February 2, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroshi Tagami, Xiang Liu
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Patent number: 10889189Abstract: A braking force control apparatus for a vehicle has a friction braking device, a regenerative braking device, and a control unit for controlling the friction braking device and the regenerative braking device. The control unit is configured to calculate a target pitch gain of the vehicle so that a pitch gain of the vehicle gradually changes in accordance with a difference between a target braking force of the vehicle and a regenerative braking force when the target braking force of the vehicle exceeds a maximum regenerative braking force and changes within a range larger than the maximum regenerative braking force, and to control a front-rear wheel distribution ratio of a friction braking force so that the pitch gain of the vehicle becomes the target pitch gain and the friction braking force becomes the difference between the target braking force of the vehicle and the maximum regenerative braking force.Type: GrantFiled: October 3, 2018Date of Patent: January 12, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kazuaki Yoshida
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Patent number: 10882502Abstract: A method is described for determining a control signal for a controllable pressure medium control valve of an electronically slip-controllable power braking system. The underlying power braking system is equipped with an actuating unit including a displaceable actuating element, the displacement of the actuating element determining a throughput of pressure medium through the pressure medium control valve. In the opened state, the pressure medium flowing through the pressure medium control valve causes flow forces on a valve closing element. Under certain circumstances, these flow forces have a closing effect on the valve closing element, thus throttling the possible pressure medium throughput, and cause undesirably high pressure differences in the interior of the pressure medium control valve. To avoid these effects, it is provided that the pressure medium control valve be controlled using a control signal dependent on the speed of an actuation of the actuating element.Type: GrantFiled: April 10, 2019Date of Patent: January 5, 2021Assignee: Robert Bosch GmbHInventors: Andrej Gardt, Christoph Eisele, Valentin Schubitschew, Volker Edelmann
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Patent number: 10857891Abstract: Provided are an electronic brake system and a method of controlling the same. The electronic brake system includes a pedal input unit configured to receive a pedal force according to a driver's braking intention, an estimating unit configured to estimate a temperature and a friction coefficient of a brake disk pad, and a control unit configured to correct a braking target pressure according to the driver's braking intention on the basis of the estimated temperature and friction coefficient of the brake disk pad.Type: GrantFiled: September 25, 2018Date of Patent: December 8, 2020Assignee: MANDO CORPORATIONInventor: Eun Ha Lee
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Patent number: 10759410Abstract: A control system for hybrid vehicles to prevent a reduction in a drive force when an output power of a battery is restricted. A first motor translates an output power of the engine partially into an electric power. A transmission mechanism distributes an output torque of the engine to the first rotary machine side and an output member side. A second motor is operated by one of the electric power translated by the first rotary machine and an electric power accumulated in the battery to generate a power. An operating mode can be selected from a first mode in which the output torque of the engine is delivered to the output member side at a first ratio, and a second mode in which the output torque of the engine is delivered to the output member side at a second ratio. The second ratio is smaller than the first ratio. A controller is configured to restrict selection of the first mode when an available output power of the battery to be supplied to the second rotary machine is smaller than a predetermined value.Type: GrantFiled: July 24, 2018Date of Patent: September 1, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuma Aoki, Tatsuya Imamura, Yasuhiro Oshiumi, Kentaro Kanzaki, Yukari Okamura
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Patent number: 10759430Abstract: A braking system for braking an electric vehicle is provided. The system includes a brake pedal having a regenerative-braking range of pedal displacement from an initial position of the brake pedal to a maximal-recuperation position of the brake pedal, and a mechanical-braking range of pedal displacement starting from the maximal-recuperation position of the brake pedal. A brake controller activates deceleration of the vehicle based on the pedal displacement. The brake controller activates deceleration of the electric vehicle based on regenerative braking within the regenerative-braking range and based on mechanical braking within the mechanical-braking range. The regenerative-braking range is adjusted based on a state of charge of a traction battery of the electric vehicle.Type: GrantFiled: November 30, 2018Date of Patent: September 1, 2020Assignees: Hyundai Motor Company, Kia Motors CompanyInventor: Stefan Hoffmann
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Patent number: 10723229Abstract: A vehicle includes an electric machine, friction brakes, and a controller. The electric machine is configured to recharge a battery during regenerative braking. The friction brakes are configured to apply torque to wheels of the vehicle to decelerate the vehicle. The controller is programmed to, responsive to an anti-lock braking event, adjust a regenerative braking torque of the electric machine based on a difference between a desired wheel slip ratio and an actual wheel slip ratio.Type: GrantFiled: March 15, 2019Date of Patent: July 28, 2020Assignee: Ford Global Technologies, LLCInventors: Yixin Yao, Yanan Zhao
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Patent number: 10723227Abstract: A brake system (100) and a brake method for a four-wheel drive electric vehicle and a four-wheel drive electric vehicle, in the system, according to a brake mode of the electric vehicle, a state of charge of a battery pack (4) and a vehicle speed, a first brake control unit controls a motor (6) to brake a wheel (9) through a motor controller (2) and a second brake control unit controls a brake actuator (12) to brake the wheels (9). The first brake control unit further determines whether a brake torque of the brake actuator (12) on the wheels (9) fails. If yes, the first brake control unit controls the motor (6) to brake the corresponding wheel (9) through the motor controller (2).Type: GrantFiled: August 10, 2016Date of Patent: July 28, 2020Assignee: BYD COMPANY LIMITEDInventors: Yubo Lian, Heping Ling, Fanliang Meng, Yanfei Xiong, Weiqiang Chen
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Patent number: 10696164Abstract: A vehicle includes a motor and a controller. The controller is programmed to, responsive to an autonomous braking request and a predicted average braking torque associated with the request having a magnitude less than a powertrain regenerative torque limit, brake the vehicle only with the motor according to a torque profile adapted from a most efficient torque profile of the motor so as to have an average value falling within a specified range of the average braking torque.Type: GrantFiled: May 18, 2017Date of Patent: June 30, 2020Assignee: Ford Global Technologies, LLCInventors: Yanan Zhao, Ming Lang Kuang, Zheng Liu, Chen Zhang
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Patent number: 10680540Abstract: In an apparatus for controlling a motorized vehicle, a rotary electric machine controller is configured to perform intermittent operation by periodically alternating between a driving period and a coasting period. A torque determiner is configured to determine a first torque during the driving period and a second torque during the coasting period. A transition period determiner is configured to determine whether to set a transition period between the driving period and the coasting period. If the transition period is determined to be set, the torque determiner determines a third torque between the first torque and the second torque and within a predetermined rang. The rotary electric machine controller sets the transition period between the driving period and the coasting period and drive the rotary electric machine with the third torque during the transition period.Type: GrantFiled: February 26, 2019Date of Patent: June 9, 2020Assignee: DENSO CORPORATIONInventors: Masaru Suzuki, Kousuke Baba, Shigeru Maeda, Chinatsu Washizu
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Patent number: 10625717Abstract: A brake control device includes a mechanical brake output determination unit configured to determine the stage number of a braking force on the basis of a target deceleration of a moving body from one or a plurality of braking force stages output from a mechanical brake included in the moving body, a mechanical braking force estimation unit configured to estimate braking force of the mechanical brake corresponding to the stage number determined by the mechanical brake output determination unit, and a regenerative brake control unit configured to output a regenerative brake command value such that a regenerative brake included in the moving body outputs a braking force corresponding to a difference between target braking force based on the target deceleration and the braking force estimated by the mechanical braking force estimation unit.Type: GrantFiled: November 17, 2016Date of Patent: April 21, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Noritaka Yanai, Hirotaka Okazaki, Kazuyuki Wakasugi, Yutaka Miyajima
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Patent number: 10569728Abstract: Methods are provided for optimizing generation of water on-board a vehicle with reduced impact on fuel economy. Regenerative braking energy, and/or solar energy, in excess of what is required for charging a system battery, is used to operate a water extractor and save the captured energy as stored water. A proportion of the braking energy used to charge the battery versus operate the water extractor is adjusted as a function of operating conditions including a water level in a water reservoir on-board the vehicle.Type: GrantFiled: March 22, 2018Date of Patent: February 25, 2020Assignee: Ford Global Technologies, LLCInventor: Douglas Martin
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Patent number: 10479211Abstract: A regenerative braking control apparatus of a vehicle may include: a drive motor; a battery for providing driving voltage to the drive motor; a data detector for detecting a driving state information of the vehicle; and a vehicle controller generating a total braking amount based on the driving state information. In particular, the vehicle controller generates a regenerative braking possible amount by using a generatable power of the drive motor and a chargeable power of the battery, performs a regenerative braking when the regenerative braking possible amount is greater than the total braking amount, and also prepares a hydraulic pressure braking based on the regenerative braking possible amount and a regenerative braking amount based on the regenerative braking.Type: GrantFiled: June 1, 2017Date of Patent: November 19, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jee Wook Huh, Kyoungcheol Oh, Gwang Il Du, Eunbae Koh, Teh Hwan Cho
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Patent number: 10434996Abstract: A system and a method for estimating the coefficient of friction of a hydraulic brake system with axle-individual pressure buildup of a motor vehicle. In addition, a system and to a method for setting the target braking torque of a hydraulic braking system with axle-individual buildup of a motor vehicle in order to obtain a desired actual braking torque.Type: GrantFiled: January 25, 2018Date of Patent: October 8, 2019Assignee: AUDI AGInventor: Matthias Geuß
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Patent number: 10421361Abstract: A system a vehicle having a wheel-driving motor is disclosed. The system includes wheel speed sensors for detecting speed of respective vehicle wheels, and a controller for controlling coast regenerative torque of the vehicle. The controller lowers coast regenerative torque based on wheel speed acquired detected using the wheel speed sensors. The controller is lowers coast regenerative torque based on speed difference among the wheels and based on change of wheel slip ratio.Type: GrantFiled: December 4, 2017Date of Patent: September 24, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Woo Cheol Cho
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Patent number: 10391991Abstract: An electric automobile braking device includes a master cylinder that has no vacuum booster and a hydraulic booster device that can increase a brake fluid pressure generated by the master cylinder. Switching is possible between a normal braking mode in which hydraulic braking and regenerative braking are used in combination when a percentage charge of a battery is less than a threshold value and a regenerative braking restriction mode in which hydraulic braking is permitted and regenerative braking is restricted when the percentage charge is a threshold value or greater. In the regenerative braking restriction mode, when a depressing force of a brake pedal by a driver exceeds a first depressing force over a predetermined period of time, an operation of the hydraulic booster device is suppressed.Type: GrantFiled: December 5, 2017Date of Patent: August 27, 2019Assignee: Honda Motor Co., Ltd.Inventors: Mikio Kashiwai, Makoto Tanaka, Mitsuyasu Ino, Masaru Nakayama
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Patent number: 10358037Abstract: The present invention addresses the problem of providing a vehicular brake system that uses both friction braking force generated by an electrical braking unit and regenerative braking force generated by a regenerative braking unit, and can reduce a shortage in braking force when a slip has occurred on a wheel and antilock control is activated. The vehicular brake system includes: an electrical braking unit that supplies operational pressure generated in operational fluid by an electrical brake actuator to wheel cylinders and thereby applies friction braking force to wheels; a regenerative braking unit for applying regenerative braking force generated by an electrical motor to a driving wheel; and an antilock control unit for activating antilock control that increases and decreases the friction braking force to stop slip of a wheel.Type: GrantFiled: March 28, 2014Date of Patent: July 23, 2019Assignee: Honda Motor Co., Ltd.Inventor: Masayuki Ueno
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Patent number: 10354462Abstract: A system includes an electronic device and a sensor to detect sensor data corresponding to the electronic device. The system also includes a machine learning processor that receives the sensor data and generates a model of the electronic device to determine a T squared threshold and a Q threshold using a machine learning algorithm. The machine learning processor also performs a T squared analysis of the electronic device by comparing a T squared value to the T squared threshold, and a Q analysis of the electronic device by comparing a Q value to the Q threshold. The machine learning processor also determines that the model is faulty when the T squared value is less than the T squared threshold and the Q value is greater than or equal to the Q threshold, and generates a new model or updates the model when the model is determined to be faulty.Type: GrantFiled: April 6, 2018Date of Patent: July 16, 2019Assignees: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., UNIVERSITY OF CONNECTICUTInventors: Lingyi Zhang, Weiqiang Chen, Krishna Pattipatti, Ali M. Bazzi, Shailesh N. Joshi, Ercan M. Dede
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Patent number: 10322724Abstract: Brake force distribution via a combination of mechanical braking and regenerative braking techniques is described. In an example, a brake system of a vehicle can detect a braking action and can cause a first negative force to be distributed across two or more wheel assemblies associated with the vehicle. A control system of the vehicle can send a command to at least a power system of the vehicle to cause the power system to affect a second negative force on a first wheel assembly and a positive force on a second wheel assembly to cause an uneven distribution of brake force between the first wheel assembly and the second wheel assembly. As a result, a combined net braking force is applied to the front wheels—the wheels with the most grip—and a reduced net braking force to is applied to the rear wheels to prevent rear-wheel lock-up.Type: GrantFiled: January 28, 2019Date of Patent: June 18, 2019Assignee: Zoox, Inc.Inventors: Johannes Edren, Moritz Boecker, Ryan O'Leary Flatland