Diesel engine slippage protecting equipment, method and system

A technology of overrunning protection and diesel engine, which is applied in the direction of mechanical equipment, engine control, machine/engine, etc. It can solve the problems of uncontrollable fuel injection pressure, uncontrollable fuel injection volume, and inability to effectively realize overrunning protection, so as to reduce vehicle side Slip, reduce the number of times, improve the effect of reliability

Inactive Publication Date: 2011-09-14
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when there is a problem with the fuel system, such as the fuel injection volume cannot be controlled or the fuel injection pressure cannot be controlled, the above method cannot effectively realize the runaway protection function

Method used

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  • Diesel engine slippage protecting equipment, method and system
  • Diesel engine slippage protecting equipment, method and system
  • Diesel engine slippage protecting equipment, method and system

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Embodiment Construction

[0026] The present invention will be explained and described in more detail below in conjunction with the accompanying drawings. It should be understood that the drawings and embodiments of the present invention are for exemplary purposes only, and are not intended to limit the protection scope of the present invention.

[0027] figure 1 is a schematic diagram of a diesel engine runaway protection system according to an embodiment of the present invention.

[0028] figure 1 The shown diesel engine runaway protection system may include a diesel engine 100, a runaway protection device 200, an exhaust braking device 300, etc., wherein the runaway protection device 200 controls the execution of the exhaust brake device according to the diesel engine speed and the runaway protection speed threshold, thereby realizing Overrun protection for diesel engines.

[0029] exist figure 1 Among them, the object protected by the overrun protection system is a diesel engine 100, which may ...

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Abstract

The invention discloses diesel engine slippage protecting equipment, method and system. The diesel engine slippage protecting equipment can comprise an acquiring device, a confirming device and a starting device, wherein the acquiring device is configured to acquire the rotating speed of a diesel engine; the confirming device is configured to confirm whether the rotating speed of the diesel engine exceeds a slippage protection rotating speed threshold value or not; and the starting device is configured to start exhaust brake when the rotating speed of the diesel engine exceeds the slippage protection rotating speed threshold value so as to realize slippage protection. The diesel engine slippage protecting equipment disclosed by the invention can realize the slippage protection of the diesel engine by automatically activating exhaust brake when slippage occurs independent of the control of a fuel system on oil spray.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to diesel engine crash protection equipment, methods and systems. Background technique [0002] Diesel engine (hereinafter referred to as diesel engine) is the power source of the vehicle, and its working performance, safety and reliability will directly affect the safe operation of the vehicle. Therefore, in addition to the performance control of the diesel engine, a series of fault detection and protection must be carried out to ensure the normal operation of the vehicle. At present, diesel engine "speeding" is a common fault, which usually manifests as the diesel engine speed is too high and exceeds its maximum allowable speed, and cannot be solved by normal means. Diesel engine "running off" may cause faults such as cylinder block and broken shaft of the diesel engine, which may lead to major accidents. Therefore, the industry has been researching solutions to the runawa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D9/06
Inventor 佟德辉孙少军王秀雷李士振
Owner WEICHAI POWER CO LTD
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