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Dynamic control method for torque and method for suppressing fluctuation of rotating speed of engine

A technology of engine speed and dynamic control, which is applied in engine control, machine/engine, mechanical equipment, etc., can solve the problems of engine speed drop and high viscosity, and achieve the effect of reducing speed fluctuation, good effect and high cost performance

Active Publication Date: 2018-11-27
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But when the ambient temperature is low, because the gearbox oil temperature is also very low and the viscosity is high, even in the neutral state, there is still a large resistance between the gears. When the clutch is released after starting, the engine crankshaft output is suddenly Sudden resistance impact, causing the engine speed to drop more

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  • Dynamic control method for torque and method for suppressing fluctuation of rotating speed of engine
  • Dynamic control method for torque and method for suppressing fluctuation of rotating speed of engine
  • Dynamic control method for torque and method for suppressing fluctuation of rotating speed of engine

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Embodiment Construction

[0039] In order to make the purpose and features of the present invention more obvious and understandable, the specific implementation of the present invention will be further described below in conjunction with the accompanying drawings. However, the present invention can be implemented in different forms and should not be limited to the described embodiments. Moreover, in the case of no conflict, the embodiments in the present application and the features in the embodiments are allowed to be combined with each other. The advantages and features of the present invention will become clearer in conjunction with the following descriptions. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0040] During the driving process of a manual transmission vehicle, there is resistance in the combination process of the eng...

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Abstract

The invention relates to a dynamic control method for torque. In a vehicle with manual transmission, after a clutch is combined, it takes a delay time to balance the output torque of the engine with external resistance. The dynamic torque reserve of the engine is increased first during combination of the clutch and then consumed during the delay time to resist the external resistance. The method has the advantages that the fluctuation of the rotating speed of the engine can be greatly reduced after starting, especially after low-temperature starting, the output torque of the engine and the external resistance can quickly stay in a balance state, and the vehicle performance is improved.

Description

technical field [0001] The invention relates to the field of power system control of vehicles, in particular to a dynamic control method for torque and a method for suppressing engine speed fluctuations. Background technique [0002] The vehicle with manual transmission is still favored by a considerable number of consumers because of its convenient operation, low cost and simple maintenance. Considering factors such as safety and the resistance of the powertrain at the rear end of the engine, many manual transmission vehicles are set to start the engine after the clutch pedal is pressed even in the neutral state. After the engine starts, release the clutch to drive. [0003] During the process of releasing the clutch, the output end of the engine power will be connected to the input end of the gearbox at the rear end through the clutch. Under normal temperature, since the gearbox is in neutral state, the resistance is very small, which has almost no effect on the speed co...

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Application Information

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IPC IPC(8): F02D29/02
CPCF02D29/02F02D2250/18
Inventor 田良云程玉佼李嘉
Owner UNITED AUTOMOTIVE ELECTRONICS SYST