Abstract:
A shifting control method for a hybrid vehicle includes: detecting operating parameters of the hybrid vehicle, where the operating parameters of the hybrid vehicle include vehicle speed, vehicle acceleration as reflected from an accelerator-pedal signal and a current gear of the hybrid vehicle; determining a work mode of the hybrid vehicle; performing speed adjustment and shifting control to a first motor-generator (51) according to the work mode and the operating parameters of the hybrid vehicle to implement shifting control of the hybrid vehicle, where the work mode includes an electric-vehicle mode and a hybrid-electric-vehicle mode. The method considers performing speed adjustment and shifting control under various working conditions. The method improves smoothness and comfort of the vehicle and enlarges the range of use. A power transmission system (100) of a hybrid vehicle and a hybrid vehicle is provided.
Abstract:
A power transmission system (100) for a vehicle includes: an engine (4); input shafts, at least one of which configured to selectively engage with the engine (4); output shafts configured to mesh with a corresponding shift driving gear; a transmission gear (6) provided on one output shaft; a motor power shaft (3); first and a second motor gears (31, 32) fitted over the motor power shaft (3); a motor synchronizer (33c); a reverse gear (71) fitted over the motor power shaft (3); a middle idler (73) configured to mesh with the shift driving gear; a reverse idler gear (72) configured to mesh with the reverse gear (71) and to selectively rotate together with the middle idler (73 ); and a first motor generator (51) configured to operate correspondingly with the motor power shaft (3). A vehicle including the power transmission system (100) is also provided.
Abstract:
A power transmission system (100) for a vehicle and a vehicle including the same are provided. The power transmission system (100) includes: an engine unit (1); a plurality of input shafts, in which the engine unit (1) is configured to selectively engage with one of the input shafts when the engine unit (1) transmits power to the input shafts; a plurality of driving gears (25) with one driving gear (25) disposed on one input shaft; an output shaft (24) configured to transfer the power from the input shafts; one or more linked gears (26) rotatable at a different speed relative to the output shaft (24), in which the linked gears (26) include a plurality of gear parts, the gear parts being configured to mesh with the driving gears (25) on the input shafts; an output unit (5) coupled on the output shaft (25) and configured to transmit the power to front wheels (210) of the vehicle; a synchronizer (6) disposed on the output shaft (24) and configured to selectively engage with the linked gear (26) so as to drive one or more wheels (200) of the vehicle via the power output by the output unit (5); and a first motor generator (41) configured to directly or indirectly couple with one of the input shaft and the output shaft (24) for power transmission.
Abstract:
A vehicle and a drive control method for the same are provided. The vehicle includes an engine unit, a transmission unit configured to selectively coupled with the engine unit, a first motor generator coupled with the transmission unit, an output unit configured to transmit a power transmitted by the transmission unit to at least one of front and rear wheels of the vehicle, a power switching device configured to adjust a power transmission between the transmission unit and the output unit, a second motor generator configured to drive the at least one of the front and rear wheels, and a power battery coupled with the first and second motor generators respectively. The drive control method includes: acquiring an operation parameter of the vehicle; and performing a drive control of the vehicle based on the operation parameter and an operation mode selected from operation modes of the vehicle.
Abstract:
The present disclosure discloses an electric vehicle and an active safety control system and method thereof. The system includes: a wheel speed detection module configured to detect a wheel speed to generate a wheel speed signal; a steering wheel rotation angle sensor and a yaw rate sensor module, configured to detect state information of the electric vehicle; a motor controller; and an active safety controller configured to receive the wheel speed signal and state information, obtain state information of a battery pack and state information of four motors, obtain a first side slip signal or a second side slip signal according to the wheel speed signal, the state information, the battery pack and the four motors, and according to the first side slip signal or the second side slip signal, control four hydraulic brakes of the electric vehicle and control the four motors by using the motor controller.
Abstract:
The present invention provides a method for controlling an engine unit in a vehicle. The vehicle includes an engine unit, a transmission unit adapted to selectively couple with the engine unit and also configurd to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit, a power switching device, a second motor generator configured to drive at least one of front and rear wheels, and a power battery that is respectively connected to the first motor generator and the second motor generator. The method includes: acquiring an operating mode of a vehicle and an operating parameter of the vehicle; and controlling an engine unit according to an operating parameter and an operating mode to start or stop.
Abstract:
A speed reducer, a power system, a straddle-type rail train, and a rail transit system are disclosed. The speed reducer includes: a box body; a speed reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high speed end of the speed reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed reducing mechanism and a more stable power transmission.
Abstract:
The present disclosure provides a drive control method, a drive control device of a hybrid electric vehicle and a hybrid electric vehicle. The drive control method includes: obtaining a current gear position of the hybrid electric vehicle, a current electric charge level of a power battery and a slope of a road on which the hybrid electric vehicle is driving; obtaining a current speed of the hybrid electric vehicle if the current gear position of the hybrid vehicle, the current electric charge level of the power battery, and the slope of the road on which the hybrid electric vehicle is driving meet a preset requirement; and causing the hybrid electric vehicle to enter a small load stop mode if the current speed is greater than or equal to a first speed threshold, and less than a second speed threshold.