Electric vehicle gear shift control system and control method thereof

Abstract

The invention discloses an electric vehicle gear shift control system and a control method thereof. The electric vehicle shifting control system is composed of a gear shift operating device and a gear shift motion transmission device, and the gear shift motion transmission device is connected between the gear shift operating device and a clutch of the electric vehicle to the gear shift motion so as to convey the gear shift motion to a diaphragm spring of the clutch, and to further control combination and separation of a clutch pressure plate and a friction plate; the gear shift device is composed of a gear shift pedal, a gear shift rocker arm, a guide rod, a roll and a guide rail; the gear shift pedal is hinged to the car body through the gear shift rocker arm, and a return spiral spring is installed on the gear shift rocker arm; the guide rod pulls the roll to move in the guide rail; two limit points and two vertexes are arranged on the guide rail, when the roll is located at the limit points, the stepped gear shift pedal cannot rebound under the action of external force, and when the roll is located at the vertexes, the gear shift pedal cannot continue to be stepped on. According to the electric vehicle gear shift control system and the control method thereof, effective and reliable electric gear shift control can be achieved.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle transmission, and in particular relates to an electric vehicle shift control system and a control method thereof. Background technique [0002] How to reduce dependence on oil is an important direction for the development of the modern automobile industry. In the past two years, my country's pure electric vehicles have developed rapidly. Many companies have launched pure electric vehicles on the market, and pure electric vehicles have entered the stage of industrialization. [0003] At present, the transmission scheme of electric vehicles can be divided into the transmission scheme of motor direct drive and the transmission scheme of motor + automatic transmission. Patent [CN105864372A] and patent [CN105864368A] proposed two two-speed electronically controlled mechanical automatic transmissions for electric vehicles. The shifting process needs to control the combination and separation of...

AI Technical Summary

Problems solved by technology

Patent [CN105864372A] and patent [CN105864368A] proposed two two-speed electronically controlled mechanical automatic transmissions for electric vehicles. The shifting process needs to control the combination and separation of dry clutches. Among them, a separate electronically controlled shift actuator is required to shift gears, which makes this solution have defects such as high system cost, complicated control process, and low service life.

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