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Vehicle fuel cut-off mode control method and system

A mode control and fuel-cutting technology, applied in transmission systems, engine control, electrical components, etc., can solve problems such as improper decision-making of entry conditions, and achieve the effects of reducing fuel consumption, improving drivability, and reducing emissions

Active Publication Date: 2020-06-26
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a vehicle fuel cut mode control method and system to solve the problem of improper decision-making of the entry conditions of the existing active fuel cut mode

Method used

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  • Vehicle fuel cut-off mode control method and system
  • Vehicle fuel cut-off mode control method and system

Examples

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Embodiment 1

[0032] This embodiment provides a vehicle fuel cut mode control method, such as Figure 1~2 As shown, the vehicle fuel cut-off mode control method includes: the mobile terminal 10 acquires road condition information and sends it to the cloud server 20; the cloud server 20 sends the road condition information to the domain controller 30; the environment perception sensor 40 acquires traffic information state information, and send it to the domain controller 30; the domain controller 30 processes the road condition information and the traffic condition information to obtain a fast fuel cut control strategy, a delayed fuel cut control strategy or a prohibited fuel cut control strategy; And the fast fuel-cut control strategy, delayed fuel-cut control strategy or prohibited fuel-cut control strategy is sent to the engine controller 50; The fuel cut control strategy combines the original fuel cut strategy to control the engine to enter the active fuel cut mode.

[0033] Specificall...

Embodiment 2

[0039] This embodiment also provides a vehicle fuel cut mode control system, such as figure 2 As shown, the vehicle fuel-cut mode control system includes a mobile terminal 10, a cloud server 20, a domain controller 30, an environmental perception sensor 40 and an engine controller 50, wherein: the mobile terminal 10 acquires road condition information and sends it to the The cloud server 20; the cloud server 20 sends the road condition information to the domain controller 30; the environment perception sensor 40 obtains the traffic condition information, and sends it to the domain controller 30; the domain controller 30 Process the road condition information and the traffic condition information to obtain a fast fuel cut control strategy, a delayed fuel cut control strategy, or a prohibited fuel cut control strategy; The oil control strategy is sent to the engine controller 50; the engine controller 50 combines the rapid fuel cut control strategy, delayed fuel cut control strat...

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Abstract

The invention provides a vehicle fuel cut-off mode control method and system. The vehicle fuel cut-off mode control system comprises a mobile terminal, a cloud server, a domain controller, an environment perception sensor and an engine controller, the vehicle fuel cut-off mode control method comprises the following steps: the mobile terminal acquires road condition information and sends the road condition information to the cloud server; the cloud server sends the road condition information to a domain controller; the environment perception sensor acquires traffic condition information and sends the traffic condition information to the domain controller; the domain controller processes the road condition information and the traffic condition information to obtain a quick fuel cut-off control strategy, a delayed fuel cut-off control strategy or a fuel cut-off forbidding control strategy; sending the quick fuel cut-off control strategy, the delayed fuel cut-off control strategy or the fuel cut-off forbidding control strategy to an engine controller; and the engine controller controls the engine to enter an active fuel cut-off mode by combining the quick fuel cut-off control strategy,the delayed fuel cut-off control strategy or the fuel cut-off forbidding control strategy with the original fuel cut-off strategy.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a method and system for controlling a vehicle fuel cut-off mode. Background technique [0002] When the vehicle is running, when the brakes are stepped on or the accelerator pedal is released, the fuel injection and ignition of the engine is prohibited, and the engine is said to enter the active fuel cut-off mode. The active fuel cut-off mode can reduce the fuel consumption of the engine, but it also has an impact on drivability, and even affects emissions in extreme cases. In the traditional vehicle fuel-cut mode control method, due to the lack of necessary environmental information, it is impossible to accurately predict and judge the overall operating conditions of the vehicle and the engine, and the entry conditions of the active fuel-cut mode are often set conservatively or have trade-offs. The possible situation is: on the one hand, when the fuel can be cut off, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W10/06B60W40/02H04L29/08F02D29/02
CPCB60W10/06B60W30/181B60W40/02F02D29/02H04L67/125
Inventor 张松庄兵宋福祥刘军张虎陈宇清刘佳熙
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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