Dump truck electro-hydraulic united braking method
A technology of electro-hydraulic combined braking and dump trucks, which is applied in the direction of brakes, brake transmission devices, vehicle components, etc., can solve the problem of large mechanical loss of brakes, and achieve the effect of preventing large mechanical loss
Active Publication Date: 2017-09-05
GUANGZHOU ELECTRICAL LOCOMOTIVE
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide an electro-hydraulic combined braking method for dump trucks, which can adjust the electric braking force and hydraulic braking pressure in real time, and effectively prevent the problem of large mechanical loss of the brake caused by the driver's subjective judgment that frequent application of mechanical braking
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[0019] The present invention will be further described below in conjunction with the accompanying drawings of the description.
[0020] An electro-hydraulic combined braking method for a dump truck. A brake controller BCU realizes comprehensive processing of vehicle brake system status monitoring, brake system function realization and brake system fault diagnosis through network, hard wire and logic control. The brake controller BCU, as the control center of the braking system, collects the operation instructions of the brake pedal and the status information of each component of the vehicle in real time, and makes control decisions according to the corresponding control strategy, outputs and adjusts the electric braking force and hydraulic braking in real time. Pressure, realize the supervision, control and management functions of each component of the braking system, achieve automatic control, and effectively prevent the problem of large mechanical loss of the brake caused by ...
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The invention relates to a dump truck electro-hydraulic united braking method. The maximum driving braking force of a vehicle is superposition of the maximum electric braking force and supplementing hydraulic braking force; a braking control unit (BCU) calculates the braking force, the electric braking force is converted into electric braking torque, and the electric braking torque is transmitted to a vehicle control unit (VCU); the hydraulic braking force is converted into a 0-5V voltage signal which is transmitted to a signal converter, and then the 0-5V voltage signal is converted into a 4-20 mA current signal by the signal converter; the current signal is transmitted to an electromagnetic proportional valve, and the electromagnetic proportional valve converts the current signal into a pipeline pressure signal for braking; the braking control unit serves as a control center of a braking system to collect operation instructions of a brake pedal and state information of all parts of the whole vehicle in real time, conducts control decision according to corresponding control strategies, and outputs and adjusts the electro-braking force and the hydraulic braking pressure in real time. By means of the method, the problem that the mechanical loss of a brake is large due to the fact that a driver conducts subjective judgment and applies mechanical braking frequently is effectively avoided.
Description
technical field [0001] The invention relates to a braking method for a dump truck, in particular to an electro-hydraulic combined braking method for a dump truck. Background technique [0002] Existing dump trucks generally only have mechanical brakes, that is, hydraulic brakes. During braking, the driver controls the brake pedal through judgment, so as to realize the braking of the whole vehicle. This kind of braking method has the problem that the driver subjectively judges that the mechanical brake is often applied to cause a large mechanical loss of the brake. Therefore, it is necessary to design a braking system with small loss and reliable braking. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electro-hydraulic combined braking method for dump trucks, which can adjust the electric braking force and hydraulic braking pressure in real time, and effectively prevent the problem of large mechanical loss of ...
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IPC IPC(8): B60T8/171B60T13/58B60T8/58
CPCB60T8/171B60T8/58B60T13/58
Inventor 汪学松陈思思曾鸣安旭梅
Owner GUANGZHOU ELECTRICAL LOCOMOTIVE