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Method and system for controlling a driving direction of an electric drive machine

A technology of driving direction and control system, which is applied in the direction of control drive, arrangement of multiple different prime movers of general power plant, brakes, etc., and can solve problems such as inability to overcome

Inactive Publication Date: 2012-05-30
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But Carlsson's system (mainly a mechanical drive system) does not overcome the problems encountered when trying to change the steering direction of an electrically driven machine before the power required to change the driving direction of the machine is quite low

Method used

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  • Method and system for controlling a driving direction of an electric drive machine
  • Method and system for controlling a driving direction of an electric drive machine
  • Method and system for controlling a driving direction of an electric drive machine

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Embodiment Construction

[0014] The invention relates to a system and method for controlling the driving direction of an electric drive machine. An exemplary embodiment of the machine 100 is figure 1 Schematic representation. The machine 100 may be an off-road truck as shown, or any other vehicle having an electric drive system, including passenger vehicles, trains, earth moving machinery, and mining vehicles. In the illustrated embodiment, the machine 100 includes an electric drive system 102 operatively coupled to the running gear 104 to advance the movement of the machine 100. The running gear 104 may include wheels and axles on each side of the machine 100. In the illustrated embodiment, the running gear 104 includes a set of front wheels on each side of the machine 100 and a set of dual rear wheels on each side of the machine 100. The walking mechanism 104 allows the machine 100 to travel on a surface of a type of terrain (for example, the terrain of the earth's surface).

[0015] The electric dr...

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PUM

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Abstract

The disclosure describes, in one aspect, a method for changing a direction of a machine that is moving in a first direction. The method includes the step of receiving a signal indicative of an intention to change the direction of the machine to a second direction. The method also includes the step of determining whether a signal indicative of a speed of the machine is greater than a threshold based at least in part on an electric motor parameter. Finally, the method includes the step of applying a braking torque to at least one travel mechanism of the machine in response to a signal indicative of an accelerator pedal position until the speed reaches the threshold.

Description

Technical field [0001] The present invention relates generally to electric drive machines, and more particularly to methods and systems for controlling the driving direction of electric drive machines. Background technique [0002] The electric drive machine can be designed to provide a combination of electrical energy and / or internal combustion energy to the drive train of the machine. Machinery is increasingly using electric drive systems to provide propulsion for machinery. For example, a passenger vehicle can use a hybrid drive system that uses a traditional gasoline powered engine and an electric motor to provide propulsion for the vehicle. For example, off-road vehicle machinery can use diesel-powered engines to drive generators, which provide electrical energy to electric motors. Electric motors are usually configured to provide propulsion for the machine by driving the wheels or running gear of the machine. [0003] In addition, the braking system can utilize components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60W10/08
CPCY02T10/6217B60T7/122B60K6/46Y02T10/7258B60W30/18045B60T13/588B60W10/18B60T2230/08B60W10/08Y02T10/62Y02T10/72
Inventor S·萨达瓦伊M·D·斯托布W·J·泰特
Owner CATERPILLAR INC