An intelligent double-contact brake light switch
A technology of brake lights and double contacts, which is applied in the direction of electronic switches, electrical components, pulse technology, etc., can solve the problem of engine failure signal light alarms, which cause the contacts of the double-contact brake light switch to be at zero, and the engine ECU cannot Problems with receiving power, etc.
Active Publication Date: 2019-01-22
浙江字本汽配科技有限公司
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Problems solved by technology
[0005] At present, the commonly used double-contact brake light switch belongs to the mechanical travel switch, and the power supply (signal) of the ECU of the automobile engine is supplied by the S1-1 contact (signal) of the double-contact brake light switch. Operation (under certain circumstances, such as waiting for a green light at a crossing, putting your foot on the brake pedal for a long time may cause the contacts of the double-contact brake light switch to be in zero position), resulting in double-contact braking The light switches S1-1 to S1-4, S2-2 to S2-5 are not powered on (because the switching contacts of the mechanical travel switch have transitional gap positions)
When the switching contact of the double-contact brake light switch is in the gap position for more than 60 seconds (the time set by the engine ECU), the engine ECU cannot receive power (signal), causing the engine failure signal light to alarm
Method used
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[0022] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0023] see Figure 1-Figure 8 , an intelligent double-contact brake light switch, which includes a double-contact brake light switch 1 and a connector 3, a smart box 2 is attached to the double-contact brake light switch 1, and the smart box 2 leads to a connector 3 , the smart box 2 is provided with a single-chip program control circuit, the single-chip program control circuit is connected with the double-contact brake light switch S2-2 end and S2-5 end, and the single-chip program control circuit is formed by the single-chip microcomputer U1, The 2 pins of the microcontroller U1 are connected to the collector of the triode Q1, the 3 pins are connected to the resistor R3, the 4 pins are connected to the emitter of the triode Q1, one end of the resistor R1, the cathode of the regulator tube ZD1, one end of the capacitor C1, the base of the triode Q1 is ...
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The invention provides an intelligent double-contact brake lamp switch which comprises a double-contact brake lamp switch body and a connector. The connector is led out by an intelligent box. The intelligent box is additionally arranged on the double-contact brake lamp switch body. The intelligent box is internally provided with a single chip microcomputer program control circuit. The single chip microcomputer program control circuit is connected with the S2-2 end and the S2-5 end of the double-contact brake lamp switch body. The intelligent double-contact brake lamp switch has the advantages that the intelligent double-contact brake lamp switch body can supply power normally in the time set by an engine ECU no matter how freely a driver operates a brake system, and the problem of misinformation of an engine fault signal lamp is solved.
Description
technical field [0001] The invention relates to a brake light switch, in particular to an intelligent double-contact brake light switch. Background technique [0002] A Chinese patent once disclosed a car brake light switch structure (CN203774117U), including a housing on which a first static contact piece and a second static contact piece are arranged, and the first static contact piece and the second static contact piece Each piece is provided with a contact surface perpendicular to the shell wall of the housing; the housing is also provided with a moving contact piece that cooperates with the first static contact piece and the second static contact piece. The two ends of the moving contact piece are respectively in contact with the contact surfaces of the first static contact piece and the second static contact piece. The position of the contact surface is higher than the contact surface of the second static contact piece, and a silver contact is arranged on the contact ...
Claims
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IPC IPC(8): H03K17/94
Inventor 钱章曦叶山明
Owner 浙江字本汽配科技有限公司