Body control module switching value detection circuit, body control module and automobile
A vehicle body control module and switching value detection technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as breakdown, achieve the effect of preventing button vibration and improving operation reliability
Inactive Publication Date: 2019-06-18
深圳市赛格车圣科技有限公司
View PDF6 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The main purpose of the present invention is to provide a body control module switching value detection circuit, a body control module and an automobile, so as to solve the problem that the existing pre-installed body control module is easily broken down by interference voltage
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0015] Such as figure 1 and figure 2 As shown, a vehicle body control module switching value detection circuit provided by the embodiment of the present invention is used to detect the switching value of the vehicle body control module, including a protection diode D1, a protection diode D2, a pull-up resistor R1, a current limiting resistor R2, Voltage dividing resistor R3, non-polar filter capacitor C1, and non-polar filter capacitor C2.
[0016] One end of the pull-up resistor R1, one end of the current-limiting resistor R2 and one end of the non-polar filter capacitor C2 are connected to each other, the other end of the non-polar filter capacitor C2 is grounded, and the other end of the pull-up resistor R1 is connected to the car's battery vo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a body control module switching value detection circuit, a body control module and an automobile. The circuit includes a protection diode D1, a protection diode D2, a pull-up resistor R1, a current limiting resistor R2, a voltage division resistor R3, a non-polarity filter capacitor C1 and a non-polarity filter capacitor C2, wherein one end of the resistor R1, one end of the resistor R2 and one end of the capacitor C2 are connected with each other, the other end of the capacitor C2 is grounded, the other end of the resistor R1 is connected with a battery voltage controllable output power of a vehicle, the other end of the resistor R2, one end of the capacitor C1, one end of the resistor R3 and an anode of the diode D1 are connected with each other and are connectedwith an IO port of a processor of the body control module, a cathode of diode D1 is connected with a VCC end, an anode of the diode D2 is connected with a VSS end, a cathode of the diode D2 is connected with the anode of the diode D1, and the other end of the capacitor C1 and the other end of the resistor R3 are grounded. The circuit is advantaged in that switching value detection of the vehicle body control module can be met, electromagnetic interference can be withstood, and operational reliability of the vehicle body control module is improved.
Description
technical field [0001] The invention relates to switch quantity detection technology, in particular to a switch quantity detection circuit of a vehicle body control module, a vehicle body control module and an automobile. Background technique [0002] Since the front-mounted body control module requires safe and stable circuit functions, and the switch value detection is also a module that users have more contact with, so the requirements for electrostatic discharge are higher. In the existing switching value detection circuit, there are usually two design measures: a. Reversely series diodes at the switching value input end, which can well prevent interference signals from being input to the switching value detection circuit. However, diodes are devices based on semiconductor PN junctions, which are easily broken down by high voltage, resulting in abnormal circuit functions, and even destroying the IO port of the processor in severe cases. b. Connect a Zener diode in paral...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G01R31/00
Inventor 王贵朱昌荣王志强
Owner 深圳市赛格车圣科技有限公司