Engine start and stop control method, device, vehicle-mounted equipment, and storage medium

A control method and engine technology, which are applied in the field of vehicle-mounted equipment and storage medium, and engine start-stop control, can solve the problems of high clutch control requirements, inability to achieve control effects, and the failure to popularize the power split configuration of dual-motor planetary gears. Achieve timely and effective control and ensure the effect of control continuity

Active Publication Date: 2021-10-15
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the three-clutch module including the CO motor in the P2 configuration is complicated, and the requirements for clutch control are relatively high. The power split configuration of the double-motor planetary gear has not been promoted, and the control of the three-motor is relatively complicated.
In addition, due to the changeable working conditions of the whole vehicle, which involves frequent engine start-stop control, the existing engine start-stop control cannot achieve the ideal control effect and realize clear logic control

Method used

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  • Engine start and stop control method, device, vehicle-mounted equipment, and storage medium
  • Engine start and stop control method, device, vehicle-mounted equipment, and storage medium
  • Engine start and stop control method, device, vehicle-mounted equipment, and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0041] figure 1 It is a flow chart of an engine start and stop control method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of engine start and stop control of a hybrid vehicle with a dual-motor parallel configuration. The method can be started by the engine The shutdown control device can be implemented, and the device can be implemented in the form of software and / or hardware. Specifically include the following steps:

[0042] S110. After receiving the serial drive mode request, control the engine to enter the engine traction state and output the serial target engine torque.

[0043] Wherein, the series driving mode request is used to request the vehicle driving mode to be switched to the series driving mode, and the series driving mode request may be sent by the vehicle driving mode management module.

[0044] It can be understood that, before receiving the serial driving mode request, the driving mode of the entire vehi...

Embodiment 2

[0062] figure 2 It is a flow chart of an engine start-stop control method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments.

[0063] Correspondingly, the method in this embodiment specifically includes:

[0064] Engine start-up is divided into two phases.

[0065] The first stage of engine startup: engine tractor control. When the vehicle drive mode control module sends a series drive mode request, the vehicle controller uses the generator to output positive torque to increase the engine speed to above the resonance speed (resonance speed is greater than 500rpm). After the engine completes timing synchronization, the whole vehicle The vehicle controller sends a fuel injection enable command to the engine, and gradually increases the engine requested torque from 0 to the series target engine torque. After the engine ignites and burns and outputs the series target engine torque, it is considered that th...

Embodiment 3

[0076] image 3 It is a structural diagram of an engine start-stop control device provided by Embodiment 3 of the present invention. This embodiment is applicable to the situation of engine start-stop control of a hybrid vehicle with a dual-motor parallel configuration.

[0077] Such as image 3 As shown, the device includes: an engine tractor state control module 310, an engine operating point adjustment control module 320 and a mode control module 330, wherein:

[0078] The engine traction state control module 310 is used to control the engine to enter the engine traction state and output the serial target engine torque after receiving the serial drive mode request;

[0079] The engine operating point adjustment control module 320 is configured to control the engine operating point to be adjusted based on the series target engine torque, and control the vehicle to be in the series driving mode or the engine to enter the engine shutdown state according to the adjustment resu...

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Abstract

The embodiments of the present invention disclose an engine start-stop control method, a device, a vehicle-mounted device and a storage medium. The method includes: after receiving a series drive mode request, controlling the engine to enter the engine tractor state and outputting the series target engine torque; controlling the engine operating point to adjust based on the series target engine torque, and controlling the entire vehicle to be in a state according to the adjustment result. The series drive mode or the engine enters the engine stop state; if the whole vehicle is in the series drive mode or the engine enters the engine stop state, a pure electric drive mode request is received to control the whole vehicle to switch to pure electric drive model. The technical solutions of the embodiments of the present invention ensure the continuity of the engine start-stop control, and complete the engine start-stop control in a timely and effective manner.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of new energy vehicle control, and in particular to a method, device, vehicle-mounted equipment, and storage medium for controlling engine startup and shutdown. Background technique [0002] With the advent of the world's energy revolution, oil resources are increasingly scarce, and in the face of increasingly stringent fuel consumption regulations, traditional pure internal combustion engine-driven vehicles are becoming more and more expensive and difficult to reduce fuel consumption. Hybrid vehicles are due to With the assistance of the electric motor, there is great potential in reducing fuel consumption. [0003] At present, the P2 configuration represented by European manufacturers, and the dual-motor planetary gear power split configuration represented by Toyota have all achieved mass production, and have achieved good fuel consumption performance, which has won the favor of mass ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B60W10/06B60W20/15
CPCB60W10/06B60W20/15B60W2710/0666Y02T10/62
Inventor祝浩徐家良
OwnerCHINA FIRST AUTOMOBILE