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Control method for transmission system of electrically-driven mining vehicle and mining vehicle using control method

A transmission system and control method technology, applied in the direction of engine control, motor vehicles, railway vehicles, etc., can solve problems such as transient impact, frequent changes, unfavorable fuel economy, etc., to ensure fuel economy, stability, Guaranteed comprehensive performance

Inactive Publication Date: 2012-10-03
SANYI ROBOT TECH CO LTD
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Problems solved by technology

[0005] In order to solve the problem that the current engine speed adjustment only considers the load, which will affect the control effect of the entire transmission system and cannot guarantee the overall performance of the vehicle. The adjustment of engine speed will have the impact of transient impact and frequent changes in engine speed. It is unfavorable for its fuel economy, and a method for controlling the transmission system of an electric-driven mine car and a mine car using this method are now provided

Method used

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  • Control method for transmission system of electrically-driven mining vehicle and mining vehicle using control method
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  • Control method for transmission system of electrically-driven mining vehicle and mining vehicle using control method

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the embodiment of the present invention provides a method for controlling the transmission system of an electric-driven mine car, including the following steps,

[0026] Calculate the optimal fuel consumption speed of the engine, and obtain the expected engine speed in fuel-saving mode according to the average demand power curve and the optimal fuel consumption curve;

[0027] For engine speed optimization, limit conditions are set according to the expected engine speed of the fuel-saving mode, the expected engine speed of the system cooling and the expected engine speed of the generator, and the optimized expected engine speed is obtained.

[0028] The specific realization method of engine optimal fu...

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Abstract

The invention discloses a control method for a transmission system of an electrically-driven mining vehicle and a mining vehicle using the control method, and belongs to the technical field of control of transmission systems of mining vehicles. The control method comprises the following steps of: calculating an engine revolution speed under the condition of optimal oil consumption, and obtaining an expected engine revolution speed in an oil-saving mode according to an average required power curve and an optimal oil consumption curve; and optimizing the engine revolution speed, setting limiting conditions according to the expected engine revolution speed in the oil-saving mode, an engine revolution speed during system cooling and an engine revolution speed expected by an engine, and obtaining an optimized expected engine revolution speed. By the control method, the engine revolution speed under the condition of the optimal oil consumption is calculated according to the average required power, and the revolution speed optimization of the engine is controlled according to an oil-saving requirement, a revolution speed requirement of the engine and a system cooling requirement, so that an oil-saving effect is achieved, other factors influencing the system performance are fully considered at the same time, the overall performance of the complete mining vehicle is guaranteed, and the stability of the system and the fuel economy can also be guaranteed.

Description

technical field [0001] The invention relates to the technical field of mine car transmission system control, in particular to a control method for an electric drive mine car transmission system and a mine car using the method. Background technique [0002] The transmission system of construction machinery is mainly to transmit the power from the engine to the driving wheels to generate driving force so that the construction machinery can run at a certain speed. The fuel saving of the transmission system can improve the fuel economy of the system, which is of great economic significance to the transmission system. [0003] The current method of engine fuel-saving control is mainly to adjust the engine speed according to the magnitude of the motor torque, so that the engine speed is adapted to the load, or to reduce fuel consumption by using the braking energy generated when the load is braked. The prior art discloses a method of adjusting the engine speed according to the lo...

Claims

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Application Information

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IPC IPC(8): F02D29/02
CPCF02D29/02B60W30/1882B60Y2200/30B60Y2200/92
Inventor 王建明滕昱棠陆丽玲
Owner SANYI ROBOT TECH CO LTD
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