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:
An integrated heat management system includes: a heat pump subsystem, configured to exchange heat with a passenger compartment and a battery of a vehicle; a high-pressure cooling subsystem, configured to exchange heat with a high-pressure system of the vehicle and the heat pump subsystem; a battery self-heating subsystem, configured to heat the battery through charging and discharging; an air heating subsystem, configured to exchange heat with the passenger compartment; the heat pump subsystem including a compressor and a control valve, one end of the control valve being in communication with an exhaust port of the compressor, and an other end of the control valve being in communication with an air return port of the compressor directly or through a gas-liquid separator; and a control subsystem, configured to control the control valve to be in communication with the exhaust port and the air return port of the compressor.
Abstract:
A method for controlling an electric drive system, includes: determining that the vehicle is in a traveling condition; obtaining a rotation speed value, a shaft end torque value, a present direct axis current value, and a present quadrature axis current value of the motor when receiving a vehicle heat-up demand signal; determining a target torque curve according to the shaft end torque value, and determining a target traveling heating calibration curve according to the vehicle heat-up demand signal and the rotation speed value; determining an intersection of the target torque curve and the target traveling heating calibration curve as a target traveling condition point; determining a target quadrature axis current value and a target direct axis current value according to the target traveling condition point; and controlling, according to the target direct axis current value and the target quadrature axis current value, the motor to operate.
Abstract:
The present disclosure belongs to the field of vehicles, and relates to a battery energy processing device and method and a vehicle, which can charge batteries during self-heating of the batteries. The battery energy processing device includes: an energy exchange interface; a first circuit, wherein a first end of the first circuit is connected with the energy exchange interface, and a second end of the first circuit is connected with a battery; a second circuit, wherein a first end of the second circuit is connected with the battery; an energy storage device, connected with a second end of the second circuit; and a controller, configured to: in a first preset state, control the second circuit to charge and discharge the battery to heat the battery, and control the first circuit to receive energy from the energy exchange interface and output the energy to the battery to charge the battery.
Abstract:
The present disclosure provides a power-drive system for a vehicle and a vehicle. The power-drive system comprises: an engine; a plurality of input shafts, the engine being configured to selectively engage with at least one of the plurality of input shafts; a plurality of output shafts; a first motor power shaft, a motor power shaft first gear being arranged on the first motor power shaft, the motor power shaft first gear and the plurality of output shafts linking with a differential of the vehicle respectively; a second motor power shaft, a motor power shaft second gear linking with one gear-position driven gear being arranged on the second motor power shaft; a transfer gear, configured to selectively engage with the motor power shaft first gear to link with the motor power shaft first gear, and selectively engage with the motor power shaft second gear to link with the motor power shaft second gear; and a first motor generator, configured to link with the transfer gear.
Abstract:
The present disclosure discloses a power drive system and a vehicle. The power drive system includes: an engine; multiple input shafts, the engine being arranged to selectively engage with at least one of the multiple input shafts, and a gear driving gear being arranged on each input shaft; multiple output shafts, a gear driven gear being arranged on each output shaft and; a reverse gear shaft, a first reverse gear shaft gear and a second reverse gear shaft gear being idly mounted on the reverse gear shaft, the first reverse gear shaft gear being meshed with one gear driving gear, and each of the first reverse gear shaft gear and the second reverse gear shaft gear being arranged to engage with the reverse gear shaft; a reverse gear output gear, the reverse gear output gear being fixedly arranged on the output shaft, and the reverse gear output gear being meshed with the second reverse gear shaft gear; and a first motor generator, the first motor generator being arranged to be linked with the reverse gear shaft.
Abstract:
An active safety control system and method for a vehicle include: a plurality of motors arranged on a plurality of wheels; a plurality of brakes arranged on the plurality of wheels; a hydraulic braking device; a pedal detection device, used for detecting pedal signals of the vehicle; a motor state detection device, used for detecting the states of the plurality of motors; a plurality of wheel speed detection devices, arranged on the plurality of wheels, used for detecting speeds of the wheels and generating wheel speed detection signals; a power battery, connected with the plurality of motors respectively; and a control device, used for obtaining braking torques according to the pedal signals and the wheel speed detection signals, determining a corresponding braking mode according to the states of motors, and controlling the brakes, the motors and the hydraulic braking device according to the braking mode and the braking torques.
Abstract:
A vehicle stability control system includes a signal collection sensor and a vehicle controller (10). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller (10) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller (10) is further configured to determine according to the vehicle condition information parameter whether the vehicle (100) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels (101) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle (100) with the vehicle stability control system are also disclosed.
Abstract:
The embodiments of the present application disclose a stability control system and a stability control method for a four-wheel drive electric vehicle and the four-wheel drive electric vehicle. In the stability control system, when the lateral acceleration is equal to or greater than an acceleration threshold, at least one of a first braking force signal, a second braking force signal, a first logic signal and a second logic signal is obtained. When the first logic signal is obtained, the body of the electric vehicle is controlled to keep stable. When the first braking force signal and the second logic signal are obtained, a motor is controlled to apply braking force to an outside front wheel. When the second braking force signal and the second logic signal are obtained, motors are controlled to apply braking force to the outside front wheel and an inside rear wheel.
Abstract:
The present disclosure discloses a shifting control method for a hybrid vehicle. The shifting control method includes: detecting operating parameters of the hybrid vehicle, where the operating parameters of the hybrid vehicle includes 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 the first motor-generator according to a 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. This improves smoothness and comfort of the vehicle and enlarges the use scope. The present disclosure further discloses a power transmission system of a hybrid vehicle and a hybrid vehicle.