摘要:
A method of controlling a powertrain for a hybrid vehicle, the method including providing an internal combustion engine, providing a motor generator operatively coupled to the internal combustion engine, providing an automatic transmission operatively coupled to the internal combustion engine, and actuating the motor generator to a certain speed to restart the vehicle.
摘要:
If a torque reduction request is outputted during a speed shift, the amount of motor torque reduction achieved by a motor-generator, of a requested amount of torque reduction, is set to a greatest-possible amount, and the amount of engine torque reduction achieved by an engine is set to a smallest-possible amount. The amount of motor torque reduction is set based on the amount of charges stored (SOC) in a battery device. If SOC≦SOC1, the amount of motor torque reduction is set to a maximum value regardless of the value of SOC. If SOC1
摘要:
A hybrid vehicle having an engine, a starter, a motor/generator, a driving shaft, a compound planetary-gear device and a vehicle control device is disclosed. The vehicle control device is used for powering the hybrid vehicle by the motor/generator alone when a vehicle speed detected by a vehicle speed detection device is below a predetermined switching vehicle speed, and for starting the engine by the starter as well as turning off the motor/generator when the vehicle speed reached the predetermined switching vehicle speed, and for modulating an output driving torque by controlling a torque and a speed of the motor/generator.
摘要:
To avoid unnecessary energy consumption and to improve king performance, in a transmission unit for a motor vehicle, having a drive train (4, 8, 5) which is intended for coupling to an internal combustion engine (1) on the one hand and wheels (6) of the vehicle on the other, and having an electrical machine (9) and a transmission (7), which constructed for torque transmission from the electrical machine (9) to the drive train (4, 8, 5) and vice versa, it is provided that the transmission (7) has an idling switching state, in which no torque transmission from the electrical machine (9) to the drive train (4, 8, 5) occurs. For controlling the switching states, a control circuit (11) is provided, which preferably operates by an automatic method.
摘要:
In a vehicle provided with a transmission that has a lock-up clutch that is directly couplable between drive sources and a drive shaft, the shock of switching between the drive sources is prevented from being transmitted. It is determined whether the drive source is to be switched, and when “YES” is determined, a lock-up clutch is disengaged or placed in a half-engaged state, and the shock due to switching of the drive source is prevented from being transmitted. Then, after it is confirmed that switching of the drive source is completed, the lock-up clutch is once again placed in the fully-engaged state.
摘要:
A powered wheelchair for disabled persons is provided that has a frame that has a first end and a second end. A seat support is coupled to the frame between the first and second ends. A pair of swivel wheels is coupled to the frame proximate the first end and a pair of motor driven wheels is connected to the frame proximate the second end. A motor is coupled to each of the driven wheels. The motors are adapted to allow a change in the rotational direction of the driven wheel to which it is coupled, wherein the rotational direction of the motors may be changed when the wheelchair is converted from a rear wheel drive wheelchair to a front wheel drive wheelchair. At least one battery is coupled to the motors, the battery providing power to the motors. An electronic controller is coupled to the motors and the battery. The controller has a user interface that is used to direct the speed and direction of the wheelchair. A seat assembly is reversibly coupled to the seat support and extends upwardly above the frame. The seat assembly has an extension member coupled thereto that is adapted to be reversed in direction relative to the seat support. The seat assembly further includes a seat base having a front edge. The seat base may thus be located so that the front edge is located generally over the swivel wheels to provide a rear wheel drive wheelchair and may be reversed so that the front edge is located generally over the driven wheels to provide a front wheel drive wheelchair. The rotational direction of the driven wheels may be reversed so that a forward command from the controller results in a different rotation when the wheelchair is in a rear wheel drive configuration as compared to a forward command when the wheelchair is in a front wheel drive configuration.
摘要:
A gear drive assembly comprises two drive motors, each individually driving one propulsion element. The assembly accommodates transaxle-type mounting on a vehicle.
摘要:
A hybrid vehicle control apparatus is provided, wherein an unpleasant sensation is not imparted to a driver depressing an accelerator pedal at the time of departure. In a hybrid vehicle control apparatus with an engine and a motor as the drive sources, and a battery for storing electrical energy from the engine or the kinetic energy of the vehicle converted by the motor, the vehicle is provided with an automatic transmission. Moreover, there is provided a discharge suppression mode which suppresses discharge from the remaining battery charge detected by a battery ECU, and a charge/discharge permit mode which permits charge/discharge of the battery. At a time of vehicle departure, departure assistance is performed only when a degree of throttle opening showing an acceleration intention of the driver exceeds a determination threshold which is larger than a determination threshold for at the time of the discharge/charge permit mode.
摘要:
A series electric drivetrain includes a multiple speed, mechanically-shifted transmission driven by a pair of electric motors. Input power is provided by both electric motors during operation in any given speed ratio, and by only one of the electric motors during shifting between speed ratios. During shifting, the motor not providing input power is released from the output, and accelerated or decelerated to a post-shift speed. When the released motor reaches the post-shift speed, a clutch is synchronously engaged to complete the shift, and the motors resume a shared supply of the transmission input power.
摘要:
Method for optimizing the operational efficiency of a hybrid electric vehicle is disclosed. The method comprises operating an engine of a hybrid electric vehicle preferentially on an optimized power curve of the engine for maximizing the efficiency of the engine and sensing a state-of-charge (SOC) condition of a battery of the hybrid electric vehicle being at a preferential value indicative of no additional charging being desired. The running torque of the engine is reduced below the optimized torque curve to a point that the power produced by the engine is substantially equal to the power demanded for driving the hybrid electric vehicle.