Control method of electric vehicle for mining

A mine-used electric vehicle and control method technology, applied in the direction of electric vehicles, control drives, control devices, etc., can solve problems affecting cruising range, high emissions, battery damage, etc.

Active Publication Date: 2018-10-16
CHANGZHOU DEV & MFR CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Explosion-proof trackless rubber-tyred vehicles powered by diesel engines have the disadvantages of three highs and one low in narrow mine roadways: high emissions, high fuel consumption, high noise, and low efficiency
According to the regulations, the batteries in a single battery box are not allowed to be connected in parallel. This will cause the battery consistency to decrease due to frequent over-discharge of the current, which will affect the overall effective discharge rate of the battery pack, thereby affecting the cruising range. Long-term use will also cause battery damage.

Method used

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  • Control method of electric vehicle for mining

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Effect test

Embodiment 1

[0028] The control method of a mining electric vehicle in this embodiment is applied to a mining electric vehicle, see figure 1 , the mine electric vehicle includes throttle, battery management system, motor and vehicle controller, the model of the vehicle controller is ECM-5554-112, the motor has a motor controller, and the model of the motor controller can be KBC-50 / 384C or NBK93 / 320C. The throttle, the battery management system, and the motor controller are all electrically connected to the vehicle controller, and the control method includes the following steps:

[0029] [1] To make the mining electric vehicle run under ideal conditions, the vehicle controller calculates the target vehicle speed V according to the accelerator pedal depth θ stepped on by the driver d ,Specifically: where V max Design maximum speed for the vehicle, θ max is the maximum depth of the accelerator; according to the transmission ratio of the mining electric vehicle, set the target vehicle sp...

Embodiment 2

[0033] The control method of a mining electric vehicle in this embodiment is applied to a mining electric vehicle, see figure 1 , the mine electric vehicle includes throttle, battery management system, motor and vehicle controller, the model of the vehicle controller is ECM-5554-112, the motor has a motor controller, and the model of the motor controller can be KBC-50 / 384C or NBK93 / 320C. The throttle, the battery management system, and the motor controller are all electrically connected to the vehicle controller, and the control method includes the following steps:

[0034] [1] To make the mining electric vehicle run under ideal conditions, the vehicle controller calculates the target vehicle speed V according to the accelerator pedal depth θ stepped on by the driver d ,Specifically: where V max Design maximum speed for the vehicle, θ max is the maximum depth of the accelerator; according to the transmission ratio of the mining electric vehicle, set the target vehicle sp...

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Abstract

The invention relates to a control method of an electric vehicle for mining. The control method comprises the following steps that the electric vehicle for mining is enabled to drive under ideal working conditions, and a target vehicle speed is calculated by a vehicle control unit according to the depth theta of a throttle which a driver stepped on; and a torque required by a motor is calculated by the vehicle control unit according to the depth theta of the throttle which the driver stepped on; an actual output torque T<(t-1)> of the motor at time (t-1) is fed back to the vehicle control unitby a motor controller, when the actual output torque T<(t-1)> reaches a required torque T<p(t)>, the input torque T<IN(t)> of the vehicle control unit to the motor controller at time t is equal to T<p(t)>, and when the actual output torque T<(t-1)> does not reach the required torque T<p(t)>, the input torque T<IN(t)> of the vehicle control unit to the motor controller at time t is equal to T<(t-1)>+T<step>. According to the control method of the electric vehicle for mining, a battery can be protected effectively, and the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to a mining electric vehicle, in particular to a control method of the mining electric vehicle. Background technique [0002] At present, my country's underground auxiliary transportation mostly uses explosion-proof trackless rubber-tyred vehicles powered by diesel engines. Explosion-proof trackless rubber-tyred vehicles powered by diesel engines have the disadvantages of three highs and one low in narrow mine roadways: high emissions, high fuel consumption, high noise, and low efficiency. Therefore, zero-emission mining electric vehicles are gradually replacing explosion-proof trackless rubber-tyred vehicles powered by diesel engines and becoming the main auxiliary transportation force for green mines. [0003] The working conditions in coal mines are complicated, and the electric vehicles used in mines are usually fully loaded, and there are often long-distance ramps. According to the usual control method of mining electric ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/421B60L2240/423Y02T10/72
Inventor 张乐文陶鹏飞王保瑞程子华
Owner CHANGZHOU DEV & MFR CENT
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