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Speed variator and controlling method thereof as well as automobile

A technology of a speed change device and a control method, which is applied in the directions of transmission device control, transmission device, gear transmission device, etc., can solve the problems of power interruption of shifting parts, low work efficiency, and few work modes, etc., to avoid frustration, The effect of controlling costs and improving cruising range

Pending Publication Date: 2020-04-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present application provides a speed change device and its shifting method, and an electric vehicle including the speed change device, so as to solve the problems of few working modes and low work efficiency of the existing single-motor single-speed reduction device; The problem of the power interruption of the shifting part of the transmission device

Method used

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  • Speed variator and controlling method thereof as well as automobile
  • Speed variator and controlling method thereof as well as automobile
  • Speed variator and controlling method thereof as well as automobile

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Embodiment Construction

[0087] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0088] The application provides a speed change device. The transmission device can be used in various types of automobiles to provide kinetic energy for the automobiles. Wherein, the car may be a car, a sport utility vehicle (SUV), or a commercial vehicle such as a truck or a van. In the present application, the transmission device has a compact structure and a small volume, and is suitable for use in small cars such as sedans and SUVs. This application is described by taking the application of the transmission device in an automobile as an example. see Figure 1 to Figure 3, the present application provides an electric vehicle 200, the electric vehicle 200 includes two front wheels 210, two rear wheels 220, a first axle 230 connecting the two front wheels 210 and two rea...

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Abstract

The invention provides a speed variator and an automobile comprising the speed variator. The speed variator is of a double-motor structure and comprises a first motor, a second motor and a speed control system, wherein the first motor and the second motor are arranged in parallel, the speed control system is arranged on one sides of the second motor and the first motor, through cooperation of thefirst motor, the second motor and the speed control system, five working gear modes can be achieved, compared with the mode that multi-gear control is achieved through a single motor, and the requirement for motor performance can be greatly lowered, and cost can be effectively controlled; and the different working gear modes can be selected according to different working conditions, so that the motor can efficiently operate under the whole working condition, the double motors are adopted for power output, when one of the motors in a system breaks down, the other motor can work independently, and the redundancy of automobile running is improved.

Description

technical field [0001] The present application relates to the field of power transmission, in particular to a transmission device and a control method thereof, and an automobile including the transmission device. Background technique [0002] Existing electric drive power drive schemes mainly include a single-motor single-speed reduction device or a single-motor multi-speed transmission device. Among them, the single-motor single-speed reducer assembly system has no shifting parts, and the reduction ratio of the reducer is a fixed speed ratio. It is usually composed of 1-2 parallel shafts or planetary gear shaft systems. The entire operating condition is realized through the control of a single motor. The speed regulation of this scheme is simple in structure and simple in control, but because it needs to meet the requirements of high torque in low-speed starting conditions and high speed in high-speed conditions at the same time, the performance requirements of the motor ar...

Claims

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Application Information

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IPC IPC(8): F16H3/00F16H3/44F16H37/08F16H61/04F16H61/32F16H63/34
CPCF16H3/001F16H3/44F16H37/0806F16H61/0403F16H61/32F16H63/3408F16H2061/326
Inventor 洪健李晶晶夏公川
Owner HUAWEI TECH CO LTD
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