Abstract: The present invention relates to a control device and method of a hybrid electric vehicle (HEV) to which Downhill Brake Control (DBC) is applied, and determines whether to perform a braking control of the HEV, by comparing a current vehicle speed of the HEV with a target vehicle speed of the HEV upon operating a DBC function, calculates a braking demand amount based on a difference between the current vehicle speed and the target vehicle speed when the braking control is determined, and controls a vehicle speed of the HEV by determining whether to perform cooperative control of a regenerative braking and a brake hydraulic braking, based on the braking demand amount and a maximum regenerative braking possible amount.

Abstract: A controller and a control method for a vehicle including an engine with a supercharger and an automatic transmission provided in a power transmission path between the engine and driving wheels are provided. The controller is configured to perform learning control of learning a command value associated with gear shifting of the automatic transmission. The controller is configured to limit a supercharging pressure of the supercharger when the automatic transmission is performing gear shifting to be equal to or less than a predetermined pressure until initial learning which is performed by the learning control unit in a predetermined period after the vehicle has been manufactured is completed.

Abstract: Systems and methods for managing shift changes of a multi-speed automatic transmission of a vehicle are provided. The multi-speed automatic transmission being capable of establishing a plurality of forward speed ratios. The vehicle may include a transmission shift selector having at least one operator selectable shift request input to request a shift change of the multi-speed automatic transmission. A control circuit operatively coupled to the multi-speed automatic transmission is provided which shifts the multi-speed automatic transmission from a first forward speed ratio to a second forward speed ratio in response to shift criteria. The shift criteria may be based on a plurality of operational characteristics related to the vehicle.

Abstract: Oil pressure controller for an automatic transmission produces a pre-charge shelf pressure supplied to a starter clutch by rapidly decreasing a command hydraulic pressure to the starter clutch after temporarily rapidly increasing the command hydraulic pressure, also produces a capacity adjustment pressure (Pb1 or Pb2) of the starter clutch by gradually increasing the hydraulic pressure from a decrease point of the pre-charge shelf pressure (Pa), when a selecting operation is made from N-range to D-range. By changing capacity adjustment pressure (Pb1 or Pb2) according to brake-operating/nonoperating state, capacity adjustment pressure (Pb1) in the brake-nonoperating state is set to be higher than capacity adjustment pressure (Pb2) in the brake-operating state by an offset hydraulic pressure amount. With this, when the selecting operation is made from N-range to D-range, in the brake-operating state, selection shock of the starter clutch can be reduced.

Abstract: A method of optimizing shifting of a shifting element which fixes a shaft to another component of the drive-train. Three shifting processes are influenced by respective characteristic forms of a control parameter. The first and second characteristic forms are different from one another. Each shifting process has a distinct start and end time (tBeginn, tEnde). The rotational speed of the shaft is a function n(t) of time t. An idealized rotational speed nideal(t):=G{n(t)} is determined by a filter G. First and second evaluation indexes I:=I(t??t,t)/I (tBeginn?t, tBeginn) are calculated, in which tBeginn<t?tEnde. I(ta, tb) is a measure of a deviation of the rotational speed n(t) from the idealized rotational speed nideal(t) over time [ta,tb]. The third characteristic form is chosen based on the first and second evaluation indexes I.

Abstract: A vehicle is provided including an electronic power steering system, an electronic throttle control system, and a stability control system.

Abstract: A selector lever with two detent plates and corresponding detent pins that travel along a shaft includes a float that moves with each of the detent pins. When a detent pin fails, a float pin remains engaged with a catch, thereby preventing rotational movement of the shaft.

Abstract: A magnetic load sensor unit is provided which can detect a load with a minute movement of its part, and which is durable and less likely to be influenced by temperature. The sensor unit includes a flange member (1) deflectable when an axial load is applied, a support member (2) supporting the flange member (1), a magnetic target (3) which generates a magnetic field, and a magnetic sensor (4) for detecting the magnetic field generated by the magnetic target (3). The magnetic target (3) and the magnetic sensor (4) are fixed to the flange member (1) and the support member (2), respectively, such that when the flange member (1) is deflected, the magnetic target (3) and the magnetic sensor (4) move relative to each other, whereby magnitude of the load can be detected based on the magnetic field detected by the magnetic sensor (4).

Abstract: A method of controlling a vehicle having a transmission system, an engine system, and a braking system includes detecting a braking condition of the braking system. The braking condition is at least one of a brake temperature being above a predetermined brake temperature limit and a braking load being above a predetermined braking load limit. The method also includes detecting a second condition of at least one of the transmission system and the engine system. The method also includes determining whether the second condition satisfies predetermined criteria. Furthermore, the method includes detecting an absolute vehicle acceleration that is below a predetermined acceleration limit. Moreover, the method includes downshifting from a current gear to a lower gear to thereby cause engine braking when the braking condition is satisfied, the second condition satisfies the predetermined criteria, and the absolute vehicle acceleration is below the predetermined acceleration limit.

Abstract: A sliding parking switch assembly and method for a vehicle includes a transmission operating mode selector for an automatic transmission moveable between a park position and a drive position and a parking switch slidably moveable between a parking brake engaged position and a parking brake disengaged position. The parking switch blocks movement of the transmission operating mode selector from the park position to the drive position when the parking switch is in the parking brake engaged position.

Abstract: A method and system are provided for controlling overspeeding of a vehicle carrying an internal combustion engine having one or more exhaust brake devices controllable to apply braking torque to the engine. The system may be operable determine a desired speed of the vehicle, to determine a road speed of the vehicle, and if the road speed of the vehicle exceeds the desired speed of the vehicle by more than a threshold speed, to determine a target brake torque required to reduce the road speed of the vehicle speed to the desired speed of the vehicle, and to then control the one or more exhaust brake devices to apply the target brake torque to the engine to thereby control the road speed of the vehicle to the desired speed of the vehicle.

Abstract: A method for braking a vehicle in a driving situation, in which an automatic braking function is active. The hydraulic pump of the brake control system may be sized to be relatively small and cost-effective, if, in critical driving situations, an additional braking device is automatically switched on or its braking capacity is increased, in order to assist the service brake and further decelerate the vehicle.

Abstract: A hybrid vehicle has a battery, a regenerative braking system, a transmission, and a controller. The controller boosts and strokes a hydraulic cylinder of an on-coming clutch when the state-of-charge of the battery allows regenerative braking and in response to a pedal actuation. The controller boosts and strokes the hydraulic cylinder before a disconnect clutch is opened and the transmission is downshifted to increase regenerative braking efficiency.

Abstract: A system and method for controlling a hybrid electric vehicle during regenerative braking is provided. The system and method include a brake controller adapted to cause, for a selected transmission gear, a first torque ratio to be applied to a regenerative brake system during regenerative braking and a second torque ratio, different from the first torque ratio, to be applied when the vehicle is not regenerative braking. The first torque ratio results in an increased braking torque generated by the regenerative brake system compared with application of the second torque ratio.

Abstract: A braking control system includes sensors for detecting pressure applied to a brake pedal. The system can also include a pressure sensor capable of detecting the hydraulic pressure of the braking system. The system can also include a position sensor for detecting a position of the brake pedal. The pressure applied to the brake pedal is compared to either the hydraulic pressure or the pedal position. If the resulting measurements are not correlated properly, braking countermeasures are applied. Braking countermeasures can include engine braking, regenerative braking, hydraulic assist, and brake pad assist.

Abstract: A method for braking a vehicle in a driving situation, in which an automatic braking function is active. The hydraulic pump of the brake control system may be sized to be relatively small and cost-effective, if, in critical driving situations, an additional braking device is automatically switched on or its braking capacity is increased, in order to assist the service brake and further decelerate the vehicle.

Abstract: A braking system and method provided for a utility vehicle pneumatically coupled to a trailer. The system has an electronic control unit, a valve device that can be electrically connected by the at least one electronic control unit, the valve device building up pressure for the trailer braking system when connected, causing the trailer to brake, and a pressure sensor which detects the pressure for the trailer braking system and transmits a corresponding signal to the electronic control unit. The electronic control unit can influence the pressure generated for the trailer braking system by pulsed connection of the valve device, taking into account the pressure detected by the pressure sensor for the trailer braking system.

Abstract: A method for braking a vehicle is provided, wherein the vehicle includes a circuit adapted for transmitting a brake signal from an operator controlled braking element to brake devices arranged at a plurality of the vehicle's ground engaging elements via a brake fluid. The method includes detecting a fluid pressure in the circuit, using the detected fluid pressure level as an input for determining a brake power for at least one auxiliary brake in the vehicle, and controlling the auxiliary brake responsively.

Abstract: An electromagnetically actuated transmission shifting element of a motor vehicle, in particular an electromagnetically actuated transmission brake (1), having a disk packet (3) and an electromagnetic actuator (7, 8, 9) for adjustable compression, to a greater or lesser extent, of the disk packet (3) and with at least one speed sensor (10). Each at least one speed sensor is integrated in the electromagnetic actuator.

Abstract: Brake system for automobile is disclosed. The brake system comprises a braking gear for supplying a braking force to an output shaft, a first braking member for making the braking gear stop, an operator for operating the first braking member and a third braking member for selectively making speed change gears stop, and a controller for controlling the operator. The breaking gear meshes continuosly with a driving gear and is coaxially aligned with the output shaft. The first braking member engages the braking gear to connect or disconnect the supply of power from a driving shaft to the braking gear. The controller receives a braking signal generated by a braking treadle and controls the operator to disconnect the supply of power from the driving shaft to the speed change gears and engage the braking gear by an operation of the first braking member.

Abstract: A transmission has a first gearshift group, a second gearshift group, and a controller. The controller is configured to perform a method that includes fully coupling the first gearshift group to an engine drive shaft, and partially coupling the second gearshift group to the drive shaft while the first gearshift group is fully coupled to the drive shaft.

Abstract: A rod-lock mechanism is provided in an automatic transmission for a vehicle. The rod-lock mechanism has an engaging pin which will be engaged with a rod when the rod is in its initial position, so as to hold the rod in its initial position. The rod-lock mechanism further has an electric actuator for driving the engaging pin when electric power is supplied, so that the engaging pin is brought out of engagement from the rod. A forced parking current supply unit controls electric power supply to the electric actuator. When the electric power is supplied to the electric actuator, the rod is moved in a direction of a parking position to bring a vehicle into a parking condition.

Abstract: A braking method for a vehicle is proposed as a safety measure and replacement function if the brake system fails, in particular the X-by-wire brake system of a motor vehicle, in which the vehicle is braked with the help of the transmission by a defined engagement of frictional shift elements until the vehicle comes to rest, such that the combination of frictional shift elements actuated when the vehicle's working brake system fails does not correspond to the shift logic of a gear during normal driving operation of the vehicle.

Abstract: A lock-up clutch control method and apparatus controls a lock-up state of a torque converter interposed between a drive unit and a transmission on a vehicle. Data indicative of the operating condition of an antilock braking system can be provided as input to the control method and apparatus and affect the lock-up state of the torque converter.

Abstract: A transmission apparatus of an all-terrain vehicle includes: a non-stage transmission disposed in a power transmission path from an engine to drive wheels; a forward and backward movement switching device capable of switching to a forward movement position, a neutral position, or a backward movement position, the forward and backward movement switching device being disposed in the power transmission path at a position near said engine; and a shift operation device for switching forward and backward movement disposed on a handle bar at a position adjacent to a handle grip, the shift operation device and the forward and backward movement switching device being interlocked with each other.

Abstract: A start control device is provided for a vehicle that is subjected to neutral control for releasing a coupling element of an automatic transmission when the vehicle is stopped with predetermined conditions satisfied while the automatic transmission is in a forward drive position. The start control device detects a braking operation performed by the driver of the vehicle or a braking condition during the neutral control, and controls the braking force of the vehicle when the vehicle returns from the neutral control, based on the detected braking operation or the braking condition during the neutral control.

Abstract: A P-ECU determines whether or not energization to an actuator is shut off when a shift-range switch instruction is unissued. If energization to the actuator is shut off, the P-ECU obtains a current rotational position of the actuator according to a count value obtained by an encoder. If a difference between a target rotational position and the current rotational position exceeds a predetermined amount, positional correction control is exercised.

Abstract: The invention relates to a method and an apparatus for operating an automated change-speed gearbox of a motor vehicle. The control device of the change-speed gearbox communicates via signals with a control unit of an anti-block control system. To allow particularly comforatable operation of the change-speed gearbox, the invention envisages that, as a function of signals from the control unit of the anti-lock control system, the change-speed gearbox is set to a neutral position, an appropriate gear ratio is determined and this gear ratio is engaged.

Abstract: A start control device is provided for a vehicle that is subjected to neutral control for releasing a coupling element of an automatic transmission when the vehicle is stopped with predetermined conditions satisfied while the automatic transmission is in a forward drive position. The start control device detects a braking operation performed by the driver of the vehicle or a braking condition during the neutral control, and controls the braking force of the vehicle when the vehicle returns from the neutral control, based on the detected braking operation or the braking condition during the neutral control.

Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.

Abstract: A vehicle transmission controller controls switching of the gear position of a transmission. The controller has a shift lever and an actuator. The shift lever is manipulated to select a gear position of the transmission. The actuator actuates the transmission to switch the gear position in accordance with a manipulation of the manipulator. The actuator switches the transmission to the gear position selected by the manipulator. The actuator switches the transmission to a predetermined gear position from the gear position selected by the manipulator when the vehicle satisfies predetermined conditions.

Abstract: A method for controlling shifts of an auto vehicle transmission is disclosed to determine a forward running shifting process and then perform forward running operations if a range switch of the shift lever is made according to a backward running vehicle driver's intention to run forwards, after the driver considers brake pedal manipulation, the engine idle and vehicle's backward running speed at the time of a R→D range switch of the shift lever, thereby preventing the changing shift shock and reduction in strength that may be caused by wear or loss of friction elements, the method including the steps of: discriminating whether a R→D range switch signal has been input while the vehicle is running backwards; detecting the vehicle's running state if the R→D range switch signal has been input; discriminating whether the first speed shifting conditions are satisfied when the detected running states of the vehicle have been determined as follows: a brake switch is turned off, and the r

Abstract: A motor vehicle has an automated clutch (2) and/or an automated transmission (3) that are operated by an actuator (11, 8) through control commands of a control device (7). At least some of the control commands depend on sensor input indicating whether or not the brakes of the motor vehicle are applied. To detect the actuation of the brakes, the motor vehicle uses two brake sensors or switches (71, 72) rather than only one, thereby providing an additional margin of safety in the operation of the vehicle.

Abstract: A method to prevent overspeed of an internal combustion and attached ancillary devices in a mechanized vehicle includes one or more procedures to prevent improper gear selection to disengage the lockup function of a torque converter, to initiate engine braking and to destroke variable displacement hydraulic pumps. Requested gear selection in downshift is allowed only after interrogation of brake pressure, ground speed, shift selection requested and torque converter output speed. The torque converter lock-up solenoid is activated or deactivated in response to torque converter output speed which is compared to selected values to engage or disengage. Engine braking using a compression release braking system response to engine RPM in manual or automatic mode to prevent overspeed. Variable displacement pumps are destroked in response to engine RPM by adjusting swashplate control. The systems may be operated independently or under the control of a common electronic module.

Abstract: An electronic-hydraulic control device of an automatic automobile transmission with frictional clutches or brakes that can be hydraulically operated to shift individual gears (A, B C, D, E), and with an electronic control device (32) which is electrically connected with a lever inside the motor vehicle, shifting gears depending on the preselected lever position and certain parameters of the combustion engine and transmission. If the electronic control device (32) thus de-energizing all solenoid valves (11, 12, 15, 16), an emergency gear is maintained during forward travel until the combustion engine is shut off after which the parking mechanism is automatically engaged, and if the electronic transmission control (32) fails during rearward travel, all clutches or brakes are depressurized and the parking mechanism is automatically engaged.

Abstract: A shift device is located on an installing portion in the passenger compartment of a vehicle for selecting the connection state of the gear train of the transmission. The shift device includes a case, manipulation body, and a first detecting member. The manipulation body is manipulated to select the connection state of the transmission. The manipulation body is arranged to be selectively projected from the case. The first detecting member detects the connection state selected by the manipulation body.

Abstract: A system for controlling gear shifting of an industrial vehicle having a transmission operable between at least two gear ratios by actuation of a transmission actuator. The system generally comprises a sensor configured to monitor one or more vehicle parameters and a controller associated with the sensor and the transmission actuator. The controller is configured to prevent actuation of the transmission actuator unless one or more vehicle parameters is in a predetermined condition.

Abstract: A motor vehicle has an automated clutch (2) and/or an automated transmission (3) that are operated by an actuator (11, 8) through control commands of a control device (7). At least some of the control commands depend on sensor input indicating whether or not the brakes of the motor vehicle are applied. To detect the actuation of the brakes, the motor vehicle uses two brake sensors or switches (71, 72) rather than only one, thereby providing an additional margin of safety in the operation of the vehicle.

Abstract: A shift lock device for vehicle, the device comprising: a selector lever shiftable to lots of mode set-up positions including parking, neutral and driving positions; a lock pin movable disposed at the selector lever for engaging to or disengaging from the engagement holes; and lock release means interlocking for the selector lever to be shifted from the parking position to the neutral position or from the neutral position to the parking or driving position when a brake pedal is not depressed, while moving the lock pin to release an engaged state between the lock pin and the engagement holes when the brake pedal is depressed, such that the selector lever is individually locked at the parking position or at the neutral position when the brake pedal is not depressed, and when the brake pedal is depressed, the selector lever can be shifted from the parking position to the drive position direction, or from the neutral position to the other set-up positioning direction, to thereby prevent an occurrence of sudden ac

Abstract: A rotation transmission device including a clutch having an inner member, an outer ring, and engaging elements provided between the inner member and the outer ring for selective transmission and shutoff of rotation power between the inner member and the outer ring, and an electromagnetic clutch having an electromagnetic coil for locking and disengaging the clutch. When the clutch is not engaged, a current of a lower level than required to lock the clutch is supplied to the electromagnetic coil of the electromagnetic clutch to shorten the response time. In another method, when DIRECT-CONNECT 4WD mode is selected, a current is intermittently supplied to an electromagnetic coil to reduce power consumption and heat buildup.

Abstract: A hand brake and an integrated gear selector including a lever which is pivotably mounted at one end and a handle mounted for rotation about its axis on the lever. The pivoting motion of the lever actuates the hand brake and rotation of the handle selects a transmission gear or driving condition of the vehicle.