Vehicle automatic transmission transmission system and vehicle

Abstract

The invention provides an automatic transmission drive system of a vehicle and the vehicle. The automatic transmission drive system comprises a motor used for providing power, a transmission and a differential mechanism. The transmission is connected with the motor so as to receive the power provided by the motor and transmitting the power to the differential mechanism, the transmission is provided with multiple gear pairs and multiple synchronizers, and at least one gear pair can be engaged with two synchronizers at the same time so as to achieve gear shifting and speed adjusting of multiplegears. The differential mechanism is connected with the transmission so as to receive the power transmitted by the transmission. According to the automatic transmission drive system of the vehicle, gear shifting and speed adjusting of multiple gears can be achieved, the system runs at the optimal efficiency by being matched with different motors, the highest rotating speed of the motor is reduced,universality matched with the motor is improved, and the drive efficiency of the drive system is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle manufacturing, in particular to a vehicle automatic transmission transmission system and a vehicle with the automatic transmission transmission system. Background technique [0002] At present, electric passenger vehicles are mainly equipped with single-speed transmissions, and the speed ratio i is around 10.0. Under the design background of single stage and large speed ratio, the motor is required to have high torque, high power and high speed. Therefore, in the context of higher torque and power of the motor, the volume, weight and cost of the motor are higher. And in the context of higher motor speed, not only the transmission efficiency is reduced, but also more severe NVH problems, as well as the life of bearings, oil seals and other components. [0003] At present, the automotive industry is also simultaneously developing a 2-speed pure electric vehicle transmission. Compared with a single...

AI Technical Summary

Problems solved by technology

However, although the 2-speed transmission has optimized the efficiency and acceleration of the powertrain to a certain extent, there are still technical problems in the transmission of pure electric drive transmissions, including the failure to reduce the motor speed, so that the NVH caused by the motor at high speed [English abbreviations for noise, vibration and harshness (Noise, Vibration, Harshness)] problems, reliability design technical problems brought about by complex working conditions and integration, matching optimization and universal technology of motor transmission and vehicle Difficulties, etc.

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