Control method and device for gear shift of hybrid power system, and vehicle-mounted device

A technology of a hybrid power system and a control method, which is applied in the field of hybrid electric vehicle control, can solve the problems of long power interruption time and reduce user experience, and achieve the effect of reducing power interruption time and improving user experience.

Active Publication Date: 2019-05-03
SAIC MOTOR
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a control method, device and vehicle-mounted equipment for gear shifting of a hybrid power system, so as to solve the problem in the prior art that the power interruption time caused by gear shifting is long, thereby reducing user experience

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  • Control method and device for gear shift of hybrid power system, and vehicle-mounted device
  • Control method and device for gear shift of hybrid power system, and vehicle-mounted device
  • Control method and device for gear shift of hybrid power system, and vehicle-mounted device

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] An embodiment of the present invention provides a method for controlling gear shifting of a hybrid power system, wherein an executor of the method for controlling gear shifting of a hybrid power system is an automatic transmission control unit TCU. Before introducing the control method of the off-road hybrid power system shifting, first introduce the structure of the car's hybrid power system, refer to figure 1 , figure 1 Among them, the engine 11 and ...

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Abstract

The invention provides a control method and device for gear shift of a hybrid power system, and a vehicle-mounted device. Before a synchronizer moves up a gear and a first clutch is closed, an engineand a first motor are controlled to conduct lifting and twisting and sliding friction of the clutch based on a first preset speed. At that time, power can be output, and power-interrupting time can bereduced, and user experience can be improved.

Description

technical field [0001] The invention relates to the field of control of hybrid electric vehicles, and more specifically, relates to a control method, device and vehicle-mounted equipment for shifting gears of a hybrid electric system. Background technique [0002] During the shifting process of a car, the length of power interruption time is an important indicator for car performance evaluation. [0003] When a hybrid vehicle shifts gears, when the power source is unloaded and the clutch is opened, the synchronizer starts to shift gears and the motor starts to adjust the speed. Only when the motor performs a torque-up operation can there be power output. [0004] When the clutch is closed, it takes a long time for the pressure cylinder to respond to the closing of the clutch, and there is a mechanical gap between the main and driven plates of the clutch. It is necessary to pre-fill the clutch to eliminate the mechanical gap between the main and driven plates , The pre-fill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02B60W10/10B60W10/06B60W10/08B60W20/40
CPCY02T10/62
Inventor 张鹏君赵沂武笛耿鹏李德晴
Owner SAIC MOTOR
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