Monitoring equipment and monitoring method for automobile brake switch endurance testing
A technology of automobile braking and durability testing, which is applied in the direction of circuit breaker testing, etc., can solve problems such as inability to provide timely warnings, accurate control, and misleading vehicles behind, and achieve the effect of shortening the development cycle and saving test development costs
Active Publication Date: 2016-11-09
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
If the brake switch is abnormal or ineffective, the brake light will be on or off, or there will be a delay in lighting up, which will mislead the vehicles behind or fail to provide a timely warning; vehicles in cruise mode cannot be activated by stepping on the brake pedal. Cancel the cruise mode; the vehicle electronic control unit cannot accurately control the engine fuel injection, ABS and other measures to cooperate with vehicle braking by detecting the brake switch signal
In order to ensure the service life of the brake switch, it is necessary to verify the durability of the brake switch before leaving the factory. At present, the test equipment in this area is still blank.
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[0027] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the present invention more clearly, but the protection scope of the present invention is not limited.
[0028] The automobile brake switch durability test monitoring equipment and monitoring method of the present invention, according to the electrical principle of the automobile brake switch, is composed of an industrial computer, a data collector, a switching power supply, a sensor, a load box and other instruments connected to the automobile brake switch The monitoring equipment, after reasonable wiring connection, installation and debugging, judges the influence of the automobile brake switch on the ECU acceleration signal according to the switch signal list collected on site.
[0029] The car brake switch generally uses two switches with opposite states, one of which is called the brake light ...
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The invention provides monitoring equipment and a monitoring method for automobile brake switch endurance testing. The monitoring equipment comprises a voltage monitoring unit, a current monitoring unit, a data collector, a control computer and a display unit. The voltage monitoring unit and the current monitoring unit are connected to the data collector. The data collector is connected to the control computer. The control computer is connected to the display unit. The invention innovatively designs the monitoring equipment and the monitoring method for endurance testing directed to automobile brake switches, and is used for monitoring whether output signals of an automobile brake switch are identical to brake pedal motions or not, and thus the action effect of a brake pedal on a brake switch can be timely fed back, the problem found in road testing can be timely solved, the vehicle model development period is shortened, and the pilot development cost is saved.
Description
technical field [0001] The invention relates to the technical field of automobile product testing, in particular to an automobile brake switch durability test monitoring device and a monitoring method. Background technique [0002] The car brake switch generally adopts two switches with opposite states. One of them is called the brake light switch, which directly controls the brake light; the other is called the brake test switch, which is used to transmit the signal of braking to the relevant control unit to cancel cruise, reduce fuel injection and change The gear control also enters the transmission and ABS / ESP control unit, which is used to control the shift lock electromagnet. At the same time, it also judges whether the brake light switch is good or bad by comparing the brake light switch with other signals. [0003] As an auxiliary part of the normal operation of the automobile brake system, the automobile brake switch is very important to ensure the safe driving of t...
Claims
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IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 胡文权朱礼铭米德旺潘杰张晓娜何志军
Owner CHERY AUTOMOBILE CO LTD