Multimode electric driving system and vehicle

A drive system, analog-electric technology, applied in electric vehicles, control drives, vehicle components, etc., can solve problems such as low system operation efficiency

Active Publication Date: 2020-10-20
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-mode electric drive system to solve the problem of low operating efficiency of the existing electric drive system based on the Ravina planetary mechanism in the pure electric working mode
The purpose of the present invention is also to provide a vehicle to solve the problem of low system operating efficiency of the electric drive system based on the Ravina planetary mechanism in the existing vehicle under the pure electric working mode

Method used

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  • Multimode electric driving system and vehicle
  • Multimode electric driving system and vehicle
  • Multimode electric driving system and vehicle

Examples

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Embodiment Construction

[0027] Vehicle Example:

[0028] This embodiment provides a vehicle, such as a pure electric vehicle, including a vehicle body and a multi-mode electric drive system. Since the vehicle body belongs to the conventional technology and has nothing to do with the invention of the present application, the following description focuses on the multi-mode electric drive system.

[0029] like figure 1 As shown, the multi-mode electric drive system includes a system housing (that is, a gearbox housing 1, and the following system housing uses the gearbox housing 1 as an example), and the gearbox housing 1 is provided with a Ravina planetary mechanism, a first Motor 2, second motor 3, first lock-up clutch 5, second lock-up clutch 6 and system output shaft 7, the first motor rotor 2A is connected to the second sun gear 4A2 of the Ravina planetary mechanism, and the second motor rotor 3A The first sun gear 4A1 of the Ravina planetary mechanism is connected, the ring gear 4C of the Ravina ...

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Abstract

The invention relates to a multimode electric drive system and a vehicle. The multimode electric drive system comprises a Ravigneaux planet mechanism, a first motor, a second motor and a system outputshaft. The first motor is connected with a second sun gear of the Ravigneaux planet mechanism; the second motor is connected with a first sun gear of the Ravigneaux planetary mechanism, a gear ring of the Ravigneaux planetary mechanism is connected with a corresponding shell through a first locking clutch, the first sun gear of the Ravigneaux planetary mechanism is connected with a correspondingshell through a second locking clutch, and a planet carrier of the Ravigneaux planetary mechanism is connected with a system output shaft. The system is based on the working principle of a Ravigneauxplanet mechanism. And the multimode electric driving system can operate in different pure electric driving modes by controlling the working states of the first locking clutch and the second locking clutch, the system can be adjusted to operate in a proper driving mode according to the actual situation, and the operation efficiency of the system can be guaranteed when the system operates in the proper driving mode.

Description

technical field [0001] The invention relates to a multi-mode electric drive system and a vehicle. Background technique [0002] At present, the mainstream solutions of electric drive system are divided into the following categories: direct drive (the motor is directly connected to the axle), single-motor multi-speed AMT drive, dual-motor multi-speed AMT drive, wheel-side drive, and wheel-hub drive. The three driving modes of direct drive, wheel edge drive and wheel hub drive are all of constant speed ratio, and it is impossible to realize the multi-speed ratio transmission of the motor and the wheel. The cost of the drive system is relatively high; the single-motor multi-speed AMT drive scheme can take into account both high vehicle speed and large gradient, but AMT has power interruption when shifting gears, and the reliability of the shift actuator is not good; Motor multi-speed AMT solves the problem of power interruption, but when the first motor is driven at high speed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60K1/02B60K17/04
CPCB60L15/2045B60L15/2054B60K1/02B60K17/04B60L2220/42B60L2260/26B60K17/02Y02T10/72B60Y2400/732Y02T10/64
Inventor 刘小伟王印束王岩王富生王兴李建锋吴胜涛郭涛王建温
Owner ZHENGZHOU YUTONG BUS CO LTD
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