Abstract: The present application provides a vehicle parameter determination method. The method includes: determining, based on a torque range of an electric drive assembly at a first voltage and a torque control accuracy threshold of the electric drive assembly, front-wheel drive torque distribution coefficient ranges corresponding to a plurality of test points; determining, based on efficiency data of the electric drive assembly at the first voltage, an optimal torque distribution coefficient corresponding to the test point within the front-wheel drive torque distribution coefficient ranges corresponding to the test points, and obtaining an optimal torque distribution coefficient map at the first voltage; acquiring optimal torque distribution coefficient maps at a plurality of other voltages; and obtaining, based on the optimal torque distribution coefficient maps at the first voltage and at the plurality of other voltages, an optimal torque distribution coefficient map of the electric drive assembly.

Abstract: A hybrid power drive system is provided, including a power battery device, a range extender system, and a motor drive system. The power battery device is configured to supply power to the motor drive system. The range extender system includes an engine and a generator. The generator is able to generate power under the driving of the engine to supply the power to the motor drive system and/or charge the power battery device. The hybrid power drive system further includes a vehicle control unit configured to control the engine and/or generator of the range extender system to generate a driving force. The range extender system is mechanically connected to a main coupling mechanism to transmit the generated driving force to a main drive axle of a vehicle by means of the main coupling mechanism to drive wheels on both sides of the axle to rotate. Also provided is a vehicle having the hybrid power drive system.