Method and system for controlling vehicle

A vehicle system and vehicle technology, applied in the direction of engine control, output power, machine/engine, etc., can solve problems such as excessive exhaust emissions, and achieve the effect of improving usability and ensuring safety.

Inactive Publication Date: 2009-07-29
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the above-mentioned technologies can play a good role in controlling the exhaust emissions. However, especially when the vehicle emission control system fails, there will still be the problem of excessive exhaust emissions.

Method used

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  • Method and system for controlling vehicle
  • Method and system for controlling vehicle

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Embodiment Construction

[0021] The following will describe the method and system for controlling a vehicle provided by the present invention through embodiments with reference to the accompanying drawings.

[0022] First, refer to Figure 1 to Figure 2 The implementation of the method for controlling a vehicle provided by the present invention will be described.

[0023] figure 1 A flow chart of a method for controlling a vehicle according to an embodiment of the invention is shown.

[0024] Such as figure 1 As shown, in step 101, the vehicle system is monitored.

[0025] The detection of the vehicle system can detect the entire vehicle system for the emission performance of the vehicle system, the drivability of the vehicle system, the safety of the vehicle system itself, and the safety of driving the vehicle.

[0026] Regarding the emissions of vehicle systems, detection of vehicle exhaust emissions can be achieved in several ways.

[0027] In one embodiment of the present invention, the exhau...

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PUM

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Abstract

The invention provides a method and a system for controlling a vehicle. The method comprises the following steps: monitoring a vehicle system; and when a vehicle system failure is monitored and the vehicle is needed to enter a limp state, making the vehicle enter the limp state through exhaust braking. The method and the system can make the vehicle enter the limp state through exhaust braking when detecting that the vehicle system failure can influence any one of the emission performance, the driving performance and the self safety of the vehicle system, and the driving safety of the vehicle. Compared with the prior art, the method and the system can make the vehicle enter the limp state in a more effective mode to further ensure the driving safety of the vehicle, the emission performance of the vehicle, the driving performance of the vehicle, and the self safety of the vehicle more effectively, and improve the usability of the vehicle simultaneously.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, in particular to a method and system for controlling a vehicle. Background technique [0002] Since the advent of diesel engines, they have been widely used in power plants and vehicles due to their good power, economy and durability. At the same time, the problem of environmental pollution caused by exhaust emissions of vehicle diesel engines has always been a concern in the field of vehicle control technology. Exhaust gas emitted by vehicles mainly contains particulate matter and nitrogen oxides NOx. Both particulate matter and NOx will pollute the environment, especially NOx is more harmful to the environment. At present, the control of exhaust emissions is mainly achieved through internal purification of diesel engines, optimization of fuel injection systems, optimization of the structure and parameters of combustion chambers, modification of fuel oil, and after-treatment of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/02F02D13/04B60W30/00B60W30/02
CPCY02T10/47Y02T10/40
Inventor 佟德辉张展腾王秀雷桑海浪
Owner WEICHAI POWER CO LTD
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