Dual-motor hybrid power system for high-power heavy truck and control method of dual-motor hybrid power system

Abstract

The invention discloses a dual-motor hybrid power system for a high-power heavy truck. The dual-motor hybrid power system includes a front axle motor, a front axle transmission, a rear axle motor, a rear axle transmission, a storage battery, a monitoring device and a main control computer, wherein an output shaft of the front axle transmission is connected with the front axle of the heavy truck and outputs power to drive the front axle of the heavy truck, and the front axle transmission is connected with the front axle motor; an output shaft of the rear axle transmission is connected with therear axle of the heavy truck and outputs power to drive the rear axle of the heavy truck, and the rear axle transmission is connected with the rear axle motor; the storage battery is electrically connected with the front axle motor and the rear axle motor, and the monitoring device is used for collecting the speed of the heavy truck, the throttle opening of the heavy truck, the front axle bridge transmission gear, the rear axle bridge transmission gear, the road surface inclination angle, the relative speed of the truck and a front truck, and the relative distance between the truck and the front truck; and the main control computer is electrically connected with the monitoring device and used for controlling the hybrid power system after analyzing and processing data, wherein the front axle transmission and the rear axle transmission are both two-gear transmissions. The invention discloses a control method of the dual-motor hybrid power system for the high-power heavy truck.

Description

technical field [0001] The invention relates to a hybrid power control system, in particular to a dual-motor hybrid power system for high-power heavy trucks and a control method thereof. Background technique [0002] Most of the power sources of modern automobiles are internal combustion engines, and the range of output torque and rotational speed is relatively small, so it is difficult to adapt to the requirements of driving in different working conditions. The purpose of twisting is to enable the vehicle to obtain different driving forces and speeds under different working conditions, and at the same time enable the engine to run under optimal working conditions to meet the requirements of power and fuel economy. The transmission is equipped with a neutral gear to realize the ability of the engine terminal to output power to the driving wheels when the vehicle is idling, coasting and parking, and the reverse gear of the transmission can also be used to realize the reverse ...

AI Technical Summary

Problems solved by technology

[0005] The present invention designs and develops a dual-motor hybrid power system for high-power heavy trucks. The purpose of the present invention is to solve the problem that the transmission shifting of the existing heavy truck power unit cannot be reasonably controlled.

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