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Electric automobile multi-mode power system

A power system and electric vehicle technology, applied in the direction of electric vehicles, electric braking systems, electric power devices, etc., can solve the problems of inability to balance power performance and overall efficiency, achieve easy mode switching, simple structure, and improve overall efficiency Effect

Active Publication Date: 2015-11-11
FUJIAN WANRUN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a multi-mode power system for electric vehicles, which is used to solve the problem that the power performance and overall efficiency cannot be balanced in the existing dual-motor power system

Method used

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  • Electric automobile multi-mode power system
  • Electric automobile multi-mode power system
  • Electric automobile multi-mode power system

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Experimental program
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Embodiment approach

[0060] A multi-mode power system for an electric vehicle, comprising a controller, a main drive motor, an auxiliary motor, a planetary gear train, a first clutch and a second clutch;

[0061] The rotating shaft of the main drive motor is connected to the sun gear of the planetary gear system, the planet carrier of the planetary gear system is the power output end, the active part of the first clutch is connected to the ring gear of the planetary gear system, and the driven part of the first clutch is connected to the planetary gear the sun gear of the gear train;

[0062] The shaft of the auxiliary motor is connected to the ring gear of the planetary gear train, the second clutch is a one-way clutch, the outer ring of the one-way clutch is fixed, the inner ring of the one-way clutch is connected to the shaft of the auxiliary motor, and the ring gear is provided with a ring gear brake;

[0063]The controller is respectively connected with the main drive motor, the auxiliary mo...

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Abstract

The invention discloses an electric automobile multi-mode power system comprising a controller, a main driving motor, an auxiliary motor, a planetary gear train, a first clutch and a second clutch. A rotating shaft of the main driving motor is connected with a sun gear of the planetary gear train; a planetary rack of the planetary gear train is provided with a power output end; a driving part of each clutch is connected with a gear ring of the planetary gear train; a driven part of each clutch is connected with a sun gear of the planetary gear train; a rotating shaft of the auxiliary motor is connected with the gear ring of the planetary gear train; and the gear ring is provided with a gear ring brake. The electric automobile multi-mode power system is simply structured and driving modes of torque coupling and rotating speed coupling can be realized.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a multi-mode power system for electric vehicles. Background technique [0002] Different from traditional fuel vehicles, the power system structure diagram of conventional centralized drive pure electric vehicles is as follows: figure 1 shown. The drive motor drives the vehicle to run through the deceleration and torque increase of the transmission or reducer, and the motor controller controls the different speeds and torques of the motor to meet the driving power requirements of the vehicle. Due to the use of a single motor drive, the motor should have a wide range of speed regulation, high torque output at low speed and certain power reserve, high efficiency and high reliability at high speed. Obviously, such a high-speed motor is too difficult to manufacture, and the motor cannot work with high efficiency under various working conditions, resulting in low overall efficiency,...

Claims

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Application Information

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IPC IPC(8): B60K1/02B60K17/02B60K17/04B60L7/10
Inventor 余捷胡旭军李芳慧雷学国张庆永
Owner FUJIAN WANRUN NEW ENERGY TECH
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