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Hybrid power system and control method thereof

A technology of a hybrid power system and a control method, which is applied to the control field of the hybrid power system and the hybrid power system, can solve the problem of high difficulty in motor control, and achieve the effects of reducing the difficulty of development, the difficulty of control, and the simplicity of setting.

Inactive Publication Date: 2020-08-11
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to at least solve the problem of high difficulty in motor control when planetary row hybrid power is used at present

Method used

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  • Hybrid power system and control method thereof
  • Hybrid power system and control method thereof
  • Hybrid power system and control method thereof

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Embodiment Construction

[0048] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of engines, and particularly relates to a hybrid power system and a control method thereof. The hybrid power system comprises an engine, a hydraulic mechanical continuously variable transmission, a motor, a drive axle and tires, the engine, the hydraulic mechanical continuously variable transmission, the motor and the drive axle are sequentially connected, and the tires are connected to two ends of the drive axle. According to the hybrid power system, the engine, the hydraulic mechanical continuously variable transmission and the motor are connectedin sequence, the optimal working point of the engine can be set through the hydraulic mechanical continuously variable transmission, constant-speed rotation is achieved, and oil consumption is reduced. Compared with a double-motor hybrid power system, the system of the invention has the following advantages: the motor does not participate in decoupling adjustment of the vehicle speed and the rotating speed of the engine, the control strategy is simple, and the control difficulty of the motor is reduced.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a hybrid power system and a control method for the hybrid power system. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] Hybrid means that the car uses engine drive and electric drive. The advantage is that when the vehicle starts and stops, it is only driven by the electric motor, and the engine is always kept in the best working condition, with good power and low emissions. [0004] At present, the hybrid power that uses the power splitting and merging of the planetary row adopts the technology of dual motors or multi-motors coupled with mechanical transmission. The motors participate in speed regulation, and the control of dual motors is difficult. The structure of the transmission was redeveloped to increase the difficulty of developing the hybrid system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/543B60K6/36B60W10/06B60W20/40B60W40/00
CPCB60K6/36B60K6/543B60W10/06B60W20/40B60W40/00
Inventor 雷保军严江张有
Owner WEICHAI POWER CO LTD