Automatic transmission of electric vehicle

• Main Author: DU XIURONG
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides an automatic transmission of an electric vehicle and relates to an automatic transmission of a pure electric vehicle. Under a normal situation, when a driving motor drives, a shifting gear box is in a high-speed operating state, namely that a motor input gear is meshed with a high-gear output gear, and a differential is in a high-speed working state and drives the electric vehicle to run; when in a situation that climbing or heavy load requires large torque, a gear selection motor is started by virtue of a controller and transmits a signal to a control system by virtue of a vehicle speed sensor I, a vehicle speed signal sensor II and a gear position signal sensor; and a shifting fork drives a shifting cam to separate the high-gear input gear, so that the motor input gear is switched to be meshed with a low-gear output gear, and thus the differential is enabled to be in a low-speed working state so as to drive the electric vehicle to run at a low speed. The automatic transmission has the