Abstract: A hybrid traction system for the traction of a vehicle comprises an internal combustion engine, at least a first electric machine and at least a second electric machine, first transmission means suitable for being connected mechanically to said internal combustion engine and to at least one of said electric machines, second transmission means suitable for being connected mechanically to at least one of said electric machines and to the wheels of the vehicle; the system comprises furthermore connecting or restraining means suitable for enabling mechanical power to be transmitted to the wheels of the vehicle only by the internal combustion engine through said first transmission means and said second transmission means. This allows to drive the vehicle using only the internal combustion engine.

Abstract: A hybrid vehicle is provided with an engine, as well as a transmission having a motor/generator, a stationary member, and a planetary gear set. The engine and the motor/generator are separately selectively connectable to one of the drive axle assemblies by engagement of different ones of the torque-transmitting mechanism to transfer torque to that drive axle assembly. One or both of the engine and the motor/generator is also selectively connectable to the other drive axle assembly by engagement of another one of the torque-transmitting mechanisms to transfer torque to the other of drive axle assembly.

Abstract: A method for operating a powertrain includes determining maximum and minimum series-drive power limits of powertrain electric components; operating in parallel-drive if vehicle speed exceeds a reference, demanded wheel power is between said limits, or demanded engine power exceeds a reference demanded engine power; and operating in series-drive if vehicle speed is less than a reference, demanded wheel power is between said limits, and demanded engine power is less than a reference engine power.

Abstract: The hybrid vehicle includes an engine, two motors, and a power distribution integration mechanism arranged coaxially with one another and a transmission. The transmission includes a transmission shaft extended in parallel with a first motor shaft and a second motor shaft, a first coupling gear train in combination with a second coupling gear train and a clutch arranged to selectively connect a ring gear and a sun gear of the power distribution integration mechanism to the transmission shaft, a deceleration mechanism connected with the transmission shaft and arranged to decelerate power from the transmission shaft and output the power of the reduced speed from a carrier, and a clutch arranged to selectively connect the carrier and the ring gear to a driveshaft.

Abstract: This invention relates to a parallel hybrid electric conversion kit for a vehicle with an internal combustion engine, a driveshaft and a transmission, such as, rear wheel drive vehicles, four-wheel drive vehicles, heavy duty multiple-driven-axle vehicles and/or all-wheel drive vehicles. The conversion kit includes a motor-generator, a torque coupler, a battery, a power electronics module and a controller. Suitable torque couplers include transfer cases and/or rear-through differentials. The conversion kit provides an aftermarket solution to increased performance, fuel economy and/or reduced emissions by modifying the drivetrain after the transmission. According to one embodiment of this invention, the control scheme of the installed conversion kit receives input signals from the engine and the motor-generator, but only sends control signals to the motor-generator, facilitating installation of the conversion kit.

Abstract: A process for operating a hybrid vehicle is provided wherein a change from an internal-combustion-engine operating mode to an electric motor operating mode, at least under some operating conditions, takes place as a function of location information locally present along the driving route. By way of a user interface, at least one location information can be defined or selected, in the presence of which a change is to be triggered from the internal-combustion engine operating mode to the electric motor operating mode.

Abstract: A hybrid vehicle comprises an internal combustion engine, a traction motor, a starter motor, and a battery bank, all controlled by a microprocessor in accordance with the vehicle's instantaneous torque demands so that the engine is run only under conditions of high efficiency, typically only when the load is at least equal to 30% of the engine's maximum torque output. In some embodiments, a turbocharger may be provided, activated only when the load exceeds the engine's maximum torque output for an extended period; a two-speed transmission may further be provided, to further broaden the vehicle's load range. A hybrid brake system provides regenerative braking, with mechanical braking available in the event the battery bank is fully charged, in emergencies, or at rest; a control mechanism is provided to control the brake system to provide linear brake feel under varying circumstances.

Abstract: A hybrid vehicle 20 sets a tentative limit value Win0 of determining a fuel increase relation with respect to a selected gearshift position SP for driving (S220, S230, S350), and performs increasing correction of a fuel injection amount according to either a first OT increase factor setting map or a second OT increase factor setting map that is enabled based on a relation of an input limit Win of the battery 50 to the tentative limit value Win0. Prohibition of fuel cutoff may be cancelled, based on a relation of the input limit Win to a driving force demand in an accelerator-off state set at the selected gearshift position SP. Even in this case, the increasing correction enables temperature regulation of an exhaust gas purification catalyst, with a view to controlling deterioration of the exhaust gas purification catalyst in an actual fuel cutoff condition after cancellation of the prohibition of the fuel cutoff.

Abstract: In a hybrid drive for a motor vehicle including a hybrid transmission with an operating mode shift device for shifting between at least one power-split operating mode and a parallel hybrid operating mode and with at least one planetary gear set, which has at least one first transmission element to be connected in the power-split operating mode to a first drive machine in a torque-proof manner and which has at least a second transmission element to be connected in a torque-proof manner in the power-split operating mode to a second drive machine, the operating mode shift device is adapted to connect the two drive machines in the parallel hybrid operating mode in the power train parallel to the first transmission element.

Abstract: An ECU calculates a drive torque request value Td0 (S102) when a creep torque generation condition is satisfied (YES in S100), calculates a creep torque reflection rate Kcrp using a gear rattle prevention map instead of an ordinary map (S110) when a vehicle speed V is substantially zero and an engine is in a load drive state (YES in S106 and NO in S108) while a forward drive range is being selected (YES in S104), and calculates a product of Td0 and Kcrp as a creep torque request value Tp (S114). The ordinary map is a map decreasing Kcrp to 0 with increase in brake torque, and the gear rattle prevention map is a map decreasing Kcrp to a predetermined value larger than 0 with increase in brake torque.

Abstract: A hybrid power output system fore outputting the power to the wheel driving shaft (8), comprising an engine (1), a first motor (2), a second motor (3), a battery (6), a first clutch (4), a second clutch (5) and a third clutch (11), wherein: the first motor (2) and second motor (3) are connected electrically with the battery (6); the engine (1) is connected to the first motor (2) via the first clutch (4); the first motor (2) is connected to a wheel driving shaft (8) via the second clutch (4); the second motor (3) is connected to the wheel driving shaft via the third clutch (11); the second clutch and the third clutch are arranged between the first motor and second motor. This hybrid power output system is compact in structure, can increase the power efficiency and reduce the fuel consumption, and can realize multiple drive modes.

Abstract: A vehicle comprises a drive sub-system having an engine and a first motor and a generator sub-system having a transmission and a second motor. The transmission for the vehicle is driven with the first motor, the second motor and the engine individually and in combination such that the vehicle may selectively operate in a serial hybrid mode and a parallel hybrid mode.

Abstract: An automotive vehicle may include an electric machine and a controller. The electric machine may be configured to provide and receive mechanical torque. The controller may be configured to determine forward or backward movement of the vehicle based on the provided or received mechanical torque and a mechanical power of the electric machine.

Abstract: A vehicle has an internal combustion engine (ICE) and a electric traction motor (ETM) coupled by a standard transmission through a differential to drive traction wheels. A control system receives sensor signals including speed sensors, a load sensor, and an incline sensors. The control system processes the speed signals to generate indicator signals corresponding to speed of the ETM, the vehicle speed, the shifting gears and the speed of the transmission output shaft. One or more displays present indications of when the speed of a shifting gear corresponding to the speed of the ETM matches the speed of the vehicle thus the speed of the transmission output shaft. An operator may shift, without clutching, from neutral and to a next shifting gear when there is an indication that the speed of the next shifting gear matches the speed of a shifting collar coupled to the transmission output shaft.

Abstract: In a hybrid vehicle including: a first battery; a first boost converter for converting an output voltage of the first battery and outputting the output voltage to a motor generator; a second battery; and a second boost converter for converting an output voltage of the second battery and outputting the output voltage to the motor generator, an ECU performs HV drive control for driving the hybrid vehicle by using driving power of both an engine and the motor generator, and stops the second boost converter, when an SOC(1) that is a value indicating a state of charge of the first battery is smaller than a threshold value ? or when an SOC(2) that is a value indicating a state of charge of the second battery is smaller than a threshold value ?.

Abstract: A hybrid drive apparatus includes a drive apparatus input shaft that is connected to an engine; a rotary electric machine; a transmission that is capable of changing a speed of rotation from a transmission input shaft and outputting a resulting rotation to a transmission output shaft, an output mechanism that connects the transmission output shaft and drive wheels; a drive transfer mechanism that links a rotor of the rotary electric machine and the transmission input shaft; and a clutch that enables interrupting and connecting of drive power between the drive apparatus input shaft and the transmission input shaft, wherein the drive transfer mechanism includes a speed reduction mechanism that reduces a rotation speed from the rotary electric machine and transmits a resulting rotation to the transmission input shaft.

Abstract: A hybrid golf car type vehicle powered by a gasoline engine or an electric motor in the forward direction and by the electric motor in the reverse direction with the gasoline engine charging the batteries when the batteries fall below a threshold charge either with a motor generator or an alternator.

Abstract: The invention relates to a power transmission device (1.1) that comprises an input shaft (2) to be connected to a thermal engine (3) and an output shaft (4) to be connected to a wheel shaft (5). The device (1.1) includes first and second electric machines (6, 7) and a mechanical assembly (12) ensuring the mechanical link between the input shaft, the output shaft and the shafts (8, 9) of the machines (6, 7). According to the invention, in order to limit the use of the epicyclic gear trains, at least one of the electric machines (8, 9) comprises a rotor (6.1) and a stator (6.2) connected to the mechanical assembly (12).

Abstract: During vehicle drive under an EV mode, a battery charge state SOC becomes smaller than a SOC(L) at time t0. As a result, EV?HEV mode change is carried out. After time t1, deceleration is desired, and an accelerator opening APO is kept at 0. At time t3, the SOC increases and becomes greater than or equal to a SOC(H) by the HEV mode. In this case, after time t1 of release of an accelerator pedal, the SOC(H) is cleared at time t2 at which a vehicle operating condition is judged to be a low load drive condition in which a motor/generator performs regenerative braking. By making a judgment of HEV?EV mode change based on the SOC(L) instead of the SOC(H), the HEV?EV mode change is carried out before time t3. A regenerative braking time ?t with the engine dragged is therefore shortened, and a regenerative braking time with no-engine drag can be correspondingly lengthened, improving an energy recovery performance.

Abstract: The present invention provides a hybrid conversion module configured to easily attach to existing powertrain components in order to produce a light hybrid vehicle. The hybrid conversion module includes an electric motor/generator operable to transmit power to a torque converter and thereby drive the light hybrid vehicle. A storage device such as a battery is operatively connected to the electric motor/generator and is configured to transmit energy to or receive energy from the electric motor/generator. A clutch is configured to selectively decouple the light hybrid vehicle's engine from the torque converter such that the vehicle can be powered by the electric motor/generator in an efficient manner. The apparatus of the present invention also includes a light hybrid vehicle having such a hybrid conversion module attached in the manner described to a conventional powertrain.

Abstract: For operation of a motor vehicle with at least one first drive motor, at least one electrical consumer of the first drive motor is operated in an energy-saving mode after autonomous switching-off of said first drive motor. The autonomous switching-off of the first drive motor is independent of any intentional switching-off of the first drive motor by a driver of the motor vehicle.

Abstract: Upon the occurrence of the abnormality that the inverter for driving the motor is in the one-phase short circuited state, this inverter is stopped in the three-phase short circuited state and sets the execution torque by subtracting the counter electromotive force application torque that is applied the driveshaft due to the counter electromotive force generated by rotation of the motor and the steering angle application torque corresponding to the steering angle from the torque demand according to the step-on amount of the accelerator pedal. The engine and the inverter for driving the motor is controlled so that the vehicle is driven with the set execution torque. This enables the driving force output to the driveshaft from the engine and the motor to be in accordance with the torque demand.

Abstract: A series-parallel coupling control method and system for a hybrid driver are suitable for a hybrid power vehicle. The hybrid driver is used to produce a driving force to drive a load. The hybrid driver includes a first power generation unit, a second power generation unit, and a main controller. The main controller selectively controls the system to drive the load in a series power coupling mode or a parallel power coupling mode. The main controller switches between the series coupling mode and the parallel coupling mode by using rotation speed compensation or torque/power compensation. Therefore, the driven load will not suffer from sudden thrust or jerk.

Abstract: A control device of a hybrid vehicle including a motive power distribution mechanism that distributes output of an engine to a first motor-generator and to an output shaft, a second motor-generator that outputs power to the output shaft via a stepped type transmission, and an electricity storage device, and a control method. In an activating operation of the vehicle, a friction engagement device is engaged, and a ready-to-run state is set based on the engagement oil pressure of the friction engagement device detected. It is determined whether the vehicle is in a motor or a non-motor run region. If the vehicle is in the non-motor run region, the original pressure of the friction engagement device is set at a non-working pressure at which a hydraulic switch does not operate, as the engine is started up. After complete explosion of the engine, the original pressure is set at a working pressure at which the switch operates.

Abstract: Proposed is a vehicle having at least one front wheel (2) drivable by means of an electric motor and at least one drivable rear wheel (3) as well as an internal combustion engine (4) supplying the front wheel (2) and rear wheel (3) with drive energy, the internal combustion engine (4) being coupled to a starter generator (16) for starting the internal combustion engine (4) and furnishing electrical drive energy for driving the front wheel (2).

Abstract: A hybrid vehicle propulsion system is disclosed comprising an engine having at least one combustion cylinder configured to operate in a first and a second combustion mode, wherein the first combustion mode is a spark ignition mode and the second combustion mode is a compression ignition mode, wherein the engine is configured to supply an engine output; a motor configured to selectively supply or absorb a secondary output; an energy storage device configured to selectively store at least a portion of the engine output and selectively supply energy to the vehicle; and a control system configured to control at least the engine, the motor, and the energy storage device, wherein the control system is configured to selectively operate said at least one combustion cylinder in one of the spark ignition mode and the compression ignition mode based on a condition of the energy storage device.

Abstract: A hybrid drive, in particular, for a motor vehicle, includes: an internal combustion engine and a transmission disposed on the output side of the internal combustion engine, which transmission is drivable by the internal combustion engine; and an electric motor associated with the transmission having an electrically driven rotor through which the transmission is additionally drivable. The transmission includes an input shaft that is driven by the internal combustion engine and runs in the longitudinal direction of the transmission, an output shaft to drive a machine disposed on the output side of the transmission, or drive wheels in the case of a vehicle, and a plurality of manually or automatically shiftable gear stages to set the various gear ratios between the input shaft and the output shaft. The electric motor at its longitudinal axis and/or rotational axis of its rotor is attached to the output shaft in parallel or essentially parallel fashion laterally externally to the transmission.

Abstract: In a 2-motor drive mode with connection of both motors with a driveshaft by means of a transmission, a hybrid vehicle sets torque commands of the motors to substantially equalize an output torque of the second motor with an output torque of the first motor and to ensure output of a torque equivalent to a preset torque demand to the driveshaft. This arrangement ensures continuous output of a relatively large torque.

Abstract: A split serial-parallel hybrid dual-power drive system, comprised of two or more than two separation drive systems allowing independent operation to respectively drive the load, or all loads driven individually are incorporated in a common frame to drive land, surface, underwater transportation means or aircraft, industrial machines and equipment or any other load drive by rotational kinetic energy.

Abstract: A transmission mechanism including a switching clutch or brake is switchable between a continuously-variable shifting state and a step-variable shifting state, and provides improved fuel economy by a transmission with an electrically variable speed ratio and high power transmitting efficiency by a gear type power transmitting device constructed for mechanical transmission of power. During four-wheel drive vehicle running with second drive wheels driven by a third electric motor, a switching control switches a differential portion to a continuously-variable shifting state, so that an operating speed of a first electric motor operated by an output of an engine as an electric generator is controlled to assure a higher degree of electricity generating efficiency, owing to the differential function of the differential portion, than when the differential portion is placed in a non-continuously-variable shifting state in which first electric motor speed and engine speed are determined by vehicle running speed.

Abstract: A drive unit for motor vehicles with hybrid drive and a drive train in a longitudinal arrangement, between the internal combustion engine and the first axle, comprising a housing piece, a through driveshaft, an electric motor, surrounding the through driveshaft with a first clutch before the electric motor and a second clutch thereafter, whereby a second axle is also to be driven with minimal space requirement. A first electric motor is thus physically combined with the first clutch, surrounding a second electric motor and the through driveshaft and is connected to the second axle by means of a third clutch, an offset gear and a shaft.

Abstract: In a 2-motor drive mode with connection of both motors with a driveshaft by means of a transmission, a hybrid vehicle sets torque commands of the motors based on a torque demand set at step S110, in order to minimize the sum of a loss of the motors and to ensure output of a power equivalent to a preset torque demand to the driveshaft.

Abstract: In a hybrid vehicle, in order to stop an engine while a clutch is kept engaged and to transmit power from a motor to a drive shaft by changing a change speed state of a transmission when the power from a second motor is being transmitted to the drive shaft by the transmission, for example, a rotation speed of the first motor is adjusted so that the first motor can be connected to the drive shaft with the clutch disengaged while torque commands for both motors are set so that the power based on torque demand is outputted to the drive shaft, the power is transferred from the second motor to the first motor while both motors are connected to the drive shaft by the transmission, and the connection between the second motor and the drive shaft by the transmission is disconnected.

Abstract: A hybrid vehicle includes an engine, motors, and a power distribution and integration mechanism that are coaxially arranged with respect to each other. The hybrid vehicle also includes a transmission including a transmission differential rotation mechanism that is a single pinion planetary gear mechanism having a sun gear, a ring gear, and a carrier that is connected to a drive shaft, and that is configured such that these three elements can differentially rotate with each other; and a clutch capable of selectively coupling one of or both of the carrier and the sun gear of the power distribution and integration mechanism with the sun gear of the transmission differential rotation mechanism.

Abstract: A first aspect of the present invention is concerned with a series hybrid drive train for a vehicle comprising a traction motor, an electric generator, a three-position clutch (20) and a controller. The three-position clutch allows the generator to be connected to an internal combustion engine (12) of the vehicle, to the traction motor or to remain freewheeling. In a second aspect of the present invention, a four-position clutch is used to further allow the internal combustion engine to be connected directly to the wheels to thereby yield a series/parallel drive train. A third aspect of the present invention is concerned with a method of operating such a hybrid drive train.

Abstract: A hybrid vehicle includes an internal-combustion engine drive coupleable with a transmission by way of a first coupling device, and an electric machine. A transmission is drivable exclusively by the internal-combustion engine drive, or simultaneously by the internal-combustion engine drive and by the electric machine, or when the first coupling device is open, exclusively by the electric machine. The internal-combustion engine drive has a first internal-combustion engine unit, which can be coupled with the transmission by way of the first coupling device, and a second internal-combustion engine unit, which can be coupled with the first internal-combustion engine unit by way of a second coupling device.

Abstract: A method is provided for predicting a loss of high-voltage isolation within a hybrid, electric, or fuel cell vehicle. The method includes recording the equivalent resistance between a vehicle chassis and a high-voltage bus, detecting a trend in the measurements, and predicting when the resistance will drop below a threshold value. The method also includes issuing a warning or message to the owner/operator when the predicted remaining number of events drops below a predetermined number and/or when the resistance drops below the threshold. Additionally, an apparatus is provided for predicting a high-voltage isolation fault comprising a controller having an algorithm for predicting the fault, a high-voltage bus and bus components, and a reporting device for reporting the fault and/or predetermined number of remaining events. The controller is configured to initiate the algorithm and record a series of equivalent resistance measurements taken between the vehicle chassis and high-voltage bus.

Abstract: A vehicle hybrid propulsion system includes an internal combustion engine, a transmission, a plate clutch, and at least one electric actuator coupled with the engine and with the transmission for being able to perform one of the operations consisting of generating propulsive forces, generating electric power and idling. A lever mechanism driven by an electric motor is used to control engaging and disengaging of the plate clutch such that connection between the transmission and the engine and/or the electric motor can be established or blocked. Thus, hybrid propulsion systems having different functions can be formed. Moreover, the hybrid propulsion systems are easy to implement by combining modular components.

Abstract: A control system for a hybrid vehicle controls the various operating modes of the hybrid vehicle. Operating modes of the hybrid vehicle include an electric-only power mode, a series hybrid mode, a series hybrid dual-power mode, and a parallel hybrid tri-power mode. The control system selects one of the operating modes for the hybrid vehicle based on one or more inputs and comparisons. Examples of inputs for the control system include a gear-mode, a present battery storage capacity, a present velocity of the hybrid vehicle, and the previous operating mode of the hybrid power system. The control system may also take into account whether a user has selected the electric-only power mode. The control system may also control the operations of one or more components of the hybrid vehicle while operating in one of the operating modes.

Abstract: A hybrid traction system for the traction of a vehicle comprises an internal combustion engine, at least a first electric machine and at least a second electric machine, first transmission means suitable for being connected mechanically to said internal combustion engine and to at least one of said electric machines, second transmission means suitable for being connected mechanically to at least one of said electric machines and to the wheels of the vehicle; the system comprises furthermore connecting or restraining means suitable for enabling mechanical power to be transmitted to the wheels of the vehicle only by the internal combustion engine through said first transmission means and said second transmission means. This allows to drive the vehicle using only the internal combustion engine.

Abstract: A driving unit for a vehicle includes plural gear sets, plural switching clutches, a lever member, an output shaft, a motor generator, a separating clutch provided for interrupting a force transmission between the output shaft and the motor generator, and a separating shifter supported to be movable in a direction of a selecting movement of the lever member between a first position and a second position. The separating clutch is connected to the separating shifter to operate the separating clutch to be engaged when the separating shifter is located at the first position and to be released when the separating shifter is located at the second position. The lever member is engaged with the separating shifter located at the first position when one of the gear sets for establishing the highest shift stage is selected and operates the separating shifter to move to the second position.