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Vehicle power system output power control method and system

A technology of output power and vehicle power, applied in the direction of vehicle condition input parameters, control devices, vehicle components, etc., can solve the problems of poor driving environment and high mining cost ratio, and achieve energy saving, convenient response form adjustment, and simplified personnel operation. Effect

Active Publication Date: 2018-02-13
CHNA ENERGY INVESTMENT CORP LTD +1
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Problems solved by technology

[0003] The trucks used in existing open-pit mining have also used hybrid or electric vehicles. Because open-pit mines are mostly located in remote areas, the geographical environment is harsh, and the driving environment is poor. In the past, the fuel consumption of fuel-powered trucks accounted for the cost of open-pit mining. 30% of the oil consumption accounts for a relatively high proportion of the production cost

Method used

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  • Vehicle power system output power control method and system
  • Vehicle power system output power control method and system
  • Vehicle power system output power control method and system

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Embodiment approach

[0088] According to one embodiment of the present invention, the drag coefficient is calculated by the following formula:

[0089] Resistance coefficient = Σ historical resistance coefficient × weight

[0090] The weight is a given value. For example, different weights can be given according to the time interval from the current time; Authentic and effective.

[0091] According to an embodiment of the present invention, the historical resistance coefficient is obtained from the historical transmission efficiency, actual power output value, vehicle weight, load, gravity acceleration, speed and slope recorded by the system according to the following formula:

[0092]

[0093] According to the calculation formula of the basic power demand value, the calculation of the deduced resistance coefficient is as the above formula. In the calculation of the basic power demand value in an embodiment of the present invention, the historical resistance coefficient is used as the feedback...

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Abstract

The invention relates to the technical field of vehicle control, and discloses a vehicle power system output power control method and system. The method comprises the steps that a basic power demand value is calculated, wherein the basic power demand value is a power value of a vehicle in the constant speed running process, and the basic power demand value is obtained through calculation accordingto the recorded historical actual power output value; an acceleration power demand value is calculated, wherein the acceleration power demand value is a power value needed by the vehicle in acceleration running; a theoretical output power set value is calculated according to the basic power demand value and the acceleration power demand value; the output value of the vehicle power system is adjusted according to the theoretical output power set value, the historical vehicle running state serves as feedback input of vehicle power system output closed-loop control, the power output and the actual power demand tend to be the same, the expected running state of the vehicle is achieved, and energy sources are saved.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, in particular to a method and a control system for controlling output power of a vehicle power system. Background technique [0002] The fuel power system of traditional vehicles, due to the lack of energy and the pollution of the environment caused by fuel exhaust, electric and hybrid vehicles have emerged as the times require. [0003] The trucks used in existing open-pit mining have also used hybrid or electric vehicles. Because open-pit mines are mostly located in remote areas, the geographical environment is harsh, and the driving environment is poor. In the past, the fuel consumption of fuel-powered trucks accounted for the cost of open-pit mining. 30% of oil consumption accounts for a relatively high proportion of production costs. For the existing hybrid or electric trucks, it is urgent to propose a solution for the management and control of the output power of the power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/188B60W20/00
CPCB60W20/00B60W30/188B60W2520/10B60W2530/10B60W2552/15B60W2552/40B60W2556/10
Inventor 巴黎明冯沛赵璐璐
Owner CHNA ENERGY INVESTMENT CORP LTD
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