CN220708429U

CN220708429U - Automobile sensor detection and fault simulation box

Info

Publication number: CN220708429U
Application number: CN202322198238.7U
Authority: CN
Inventors: 彭雪东; 徐高峰; 李一博
Original assignee: Hohhot Wantong Automobile Vocational Training School
Current assignee: Hohhot Wantong Automobile Vocational Training School
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-04-02
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses an automobile sensor detection and fault simulation box, which comprises a box body, wherein a knob switch is arranged on the front surface of the box body, display screens are symmetrically arranged at the corners of the tops of the two sides of the front surface of the box body, a throttle sensor interface is arranged on one side of the top of the front surface of the box body, an accelerator cable sensor interface is further arranged on one side of the throttle sensor interface, which is positioned on the front surface of the box body, and a cam shaft sensor interface is arranged at the bottom of the throttle sensor interface; through the detection and simulation structure that set up, solve the learner and study the convenience and the intuitiveness of automatically controlled engine sensor measuring line, protect the elasticity of control unit and sensor, executor stitch, can simulate trouble phenomena such as signal low voltage and high voltage of throttle sensor, accelerator pedal, boost pressure sensor, air inlet temperature sensor simultaneously.

Description

Automobile sensor detection and fault simulation box

Technical Field

The utility model belongs to the technical field of automobiles, and particularly relates to an automobile sensor detection and fault simulation box.

Background

The sensor for car is an input device of computer system of car, it converts various working condition information in car running, such as car speed, temp. of various media and running condition of engine, etc. into electric signal, and then it is fed into computer so as to make the engine be in optimum working state. Many sensors for vehicles are provided, and when a fault occurs in the sensor is judged, the sensor itself should not be considered, but the whole circuit with the fault should be considered

The utility model discloses an automobile ECU fault detection system and detection method thereof in the patent of 202010945184.4, for the signal transmission that simulates the sensor through micro-processor or singlechip carries out the test, for maintenance personnel, its commonality is not high, and adopt micro-processor or singlechip to lead to the structure complicated, the cost is higher, through the automobile ECU fault detection case of setting up, ECU, connecting cable, bent axle position sensor simulator, automobile diagnosis ECU decoder, be used for the fault investigation of automobile ECU and its relevant circuit, its simple structure, low cost, the commonality is high, but along with current automobile electronic equipment increase, sensor on the automobile also increases with it, because sensor and executor line speed are good or bad to the control unit, need pull out the measurement between electronic control unit and the sensor pencil and carry out, cause the detection maintenance difficulty, the line speed is not good and measure and line speed stitch loose virtual joint scheduling problem, therefore we propose an automobile sensor detects and fault simulation case.

Disclosure of Invention

The utility model aims to provide an automobile sensor detection and fault simulation box, which solves the problems that as the current automobile electronic equipment increases, the number of sensors on an automobile increases, and the line speed of the sensors and the actuators is not good enough to be determined by the sensor and the actuator when the sensors and the actuators are in fault, and the electronic control unit and the sensor wire harness need to be pulled back and forth for measurement, so that the detection and maintenance are difficult, the line speed is not good enough to be measured, the line speed stitch is loose and virtual connection is caused, and the like.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automobile sensor detects and trouble simulation case, includes the box, the front surface of box is provided with knob switch, the front surface both sides top corner symmetry of box is provided with the display screen, front surface top one side of box is provided with throttle valve sensor interface, one side of throttle valve sensor interface is located the front surface of box still is provided with throttle line sensor interface, the bottom of throttle valve sensor interface is provided with the camshaft sensor interface, the bottom of throttle line sensor interface is provided with the crank shaft sensor interface, the bottom of camshaft sensor interface is provided with the boost pressure sensor interface, the bottom of crank shaft sensor interface is provided with the air inlet temperature sensor interface, the bottom of boost pressure sensor interface is provided with the air quality meter interface, the bottom of air inlet temperature sensor interface is provided with the oil rail pressure sensor interface, the bottom of air quality meter interface is provided with the oxygen sensor interface, one side of box is provided with the CAN interface.

Preferably, the knob switch is provided with four.

Preferably, two CAN interfaces are provided, and the two CAN interfaces are a CAN-H interface and a CAN-L interface respectively.

Preferably, a plurality of detection sockets are further arranged on the surface of the box body, and the throttle valve sensor interface to the CAN interface are connected with the detection sockets.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through the detection and simulation structure, the problem that students learn the convenience and intuitiveness of measuring lines of an electric control engine sensor is solved, the tightness of pins of a control unit, the sensor and an actuator is protected, meanwhile, fault phenomena such as low voltage and high voltage of signals of a throttle sensor, an accelerator pedal, a boost pressure sensor and an air inlet temperature sensor can be simulated, the pins of the control module line are independently displayed on equipment on the premise of a method based on the detection of a common automobile sensor, the power supply of the sensor and the actuator is conveniently distinguished, the bonding and the signals are directly measured, secondary damage caused by loose virtual connection of the pins in the traditional measurement can be avoided, the fault phenomena can be deeply recognized, and the automobile maintenance quality is improved by combining actual maintenance;

(2) The training is convenient, the control and the operation are simple, the cost is considerable, the training is assisted, the learning efficiency is improved, and meanwhile, the original circuit pins of the vehicle are protected.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic circuit diagram of the present utility model;

in the figure: 100. a case; 101. a knob switch; 102. a throttle sensor interface; 103. an accelerator cable sensor interface; 104. a camshaft sensor interface; 105. a crankshaft sensor interface; 106. a boost pressure sensor interface; 107. an intake air temperature sensor interface; 108. an air mass meter interface; 109. an oil rail pressure sensor interface; 110. an oxygen sensor interface; 111. and a CAN interface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides a technical solution: through the designed equipment, the detection holes and the fault simulation points, when the device is used for detection, a vehicle is started, a wire harness interface on a box body is directly connected with an engine computer, so that the monitoring and detection of various states of a throttle valve sensor, an accelerator cable sensor, a cam shaft sensor and a crank shaft sensor, an air inlet temperature sensor, an air mass meter, an oil rail pressure sensor, an oxygen sensor and CAN-H, CAN-L CAN be realized, an automobile sensor detection and fault simulation box comprises a box body 100, the front surface of the box body 100 is provided with knob switches 101, the knob switches 101 are four, different detection is completed by adjusting different knob switches 101 when the device is used for detection, display screens are symmetrically arranged at the corners of the top parts of two sides of the front surface of the box body 100 and are used for displaying detection data, one side of the top part of the front surface of the box body 100 is provided with a throttle valve sensor interface 102, the throttle sensor interface 102 is provided with six wires in total, one side of the throttle sensor interface 102 is positioned on the front surface of the box body 100 and is also provided with an accelerator cable sensor interface 103, the accelerator cable sensor interface 103 is provided with six wires, the bottom of the throttle sensor interface 102 is provided with a camshaft sensor interface 104, the camshaft sensor interface 104 is provided with three groups of wires, the bottom of the accelerator cable sensor interface 103 is provided with a crankshaft sensor interface 105, the crankshaft sensor interface 105 is provided with two groups of wires, the bottom of the camshaft sensor interface 104 is provided with a boost pressure sensor interface 106, the boost pressure sensor interface 106 is provided with three groups of wires, the bottom of the crankshaft sensor interface 105 is provided with an air inlet temperature sensor interface 107, the air inlet temperature sensor interface 107 is provided with two groups of wires, the bottom of boost pressure sensor interface 106 is provided with air quality meter interface 108, be provided with three wiring on the air quality meter interface 108, the bottom of air inlet temperature sensor interface 107 is provided with rail pressure sensor interface 109, be provided with three wiring on the rail pressure sensor interface 109, the bottom of air quality meter interface 108 is provided with oxygen sensor interface 110, be provided with six wiring on the oxygen sensor interface 110, one side of box 100 is provided with CAN interface 111, CAN interface 111 is provided with two, and two CAN interfaces 111 are CAN-H interface and CAN-L interface respectively.

Specifically, the surface of the box 100 is further provided with a plurality of detection sockets, and the throttle sensor interface 102, the throttle cable sensor interface 103, the camshaft sensor interface 104, the crankshaft sensor interface 105, the boost pressure sensor interface 106, the intake air temperature sensor interface 107, the air quality meter interface 108, the oil rail pressure sensor interface 109, the oxygen sensor interface 110 and the CAN interface 111 are all connected with the detection sockets, so that a circuit CAN be switched on during detection.

The working principle and the using flow of the utility model are as follows: the equipment adopts an acrylic transparent plate to be made into a box shape, a detection head is perforated and installed on a panel, pins of the detection head are correspondingly welded according to a correct circuit diagram of a sensor and an actuator, a fuse box is arranged in the equipment to protect a circuit and a computer board from damage caused by improper operation in practical training measurement, meanwhile, a 10K potentiometer is adopted to simulate a signal wire in a simulated circuit fault without using temperature so as to judge the quality of the sensor, and fault simulation of a part of sensors such as a multi-gear rotary switch with a ground short circuit fault, a positive short circuit fault, a high voltage, a low voltage and the like in the switch is also integrated, so that some fault simulation of driving CAN CAN be realized: CAN-H and power supply short circuit simulation; CAN-H and ground short circuit simulation; CAN-L and power supply short circuit simulation; CAN-L and ground short circuit simulation; short circuit simulation and the like between the CAN-H and the CAN-L, and simultaneously, two multi-gear switches are rotated, the operation is simple, the control is convenient to realize, a test circuit is simple and clear, and a plug of the equipment CAN be pulled out after the training is finished, so that the equipment is separated from a vehicle, the closing of a cover of the vehicle is not influenced, and meanwhile, the equipment CAN be measured; common resistors, diodes, triodes, field effect triodes, common capacitors, light emitting diodes, and the like, so that the trainee learns the basic circuit measurement.

When CAN faults are set; according to the circuit diagram shown in the figure 2 of the drawings, the optional switch 1 is turned to the (1) horn position, and then the rotary switch 2 is turned to the (1) horn position, so that CAN-H and CAN-L are short-circuited with the anode, and the voltage is increased; rotating the rotary switch 1 to the (2) horn position, rotating the rotary switch 2 to the (2) horn position, shorting CAN-H and CAN-L with the negative electrode at the moment, and pulling down the voltage; turning the rotary switch 1 to the number (3) position turns on the resistor, and increases the resistor and the voltage;

when the air inlet temperature sensor is adjusted to be faulty; as can be seen from the circuit diagram in fig. 2 of the accompanying drawings, the rotary switch 3 is connected to the horn (1), the rotary switch 4 is connected to the horn (1), the potentiometer 1 is turned on, and the signal voltage is adjusted by adjusting the knob of the potentiometer 1;

when the throttle sensor is adjusted to be faulty; as can be seen from the circuit diagram of fig. 2 of the accompanying drawings, when the rotary switch 3 is connected to the horn (2), the throttle signal and the potentiometer 2 are turned on, so that the voltage of the throttle signal is adjusted.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automobile sensor detects and trouble analog box, its characterized in that: including box (100), the front surface of box (100) is provided with knob switch (101), the symmetry of front surface both sides top corner of box (100) is provided with the display screen, front surface top one side of box (100) is provided with throttle sensor interface (102), one side of throttle sensor interface (102) is located the front surface of box (100) and still is provided with throttle line sensor interface (103), the bottom of throttle sensor interface (102) is provided with camshaft sensor interface (104), the bottom of throttle line sensor interface (103) is provided with crank shaft sensor interface (105), the bottom of camshaft sensor interface (104) is provided with pressure boost pressure sensor interface (106), the bottom of crank shaft sensor interface (105) is provided with air inlet temperature sensor interface (107), the bottom of pressure boost pressure sensor interface (106) is provided with air quality gauge interface (108), the bottom of air inlet temperature sensor interface (107) is provided with oil rail pressure interface (109), the bottom of air gauge interface (108) is provided with air rail interface (110).

2. An automobile sensor detection and fault simulation box according to claim 1, wherein: the knob switch (101) is provided with four.

3. An automobile sensor detection and fault simulation box according to claim 1, wherein: the CAN interfaces (111) are two, and the two CAN interfaces (111) are a CAN-H interface and a CAN-L interface respectively.

4. An automobile sensor detection and fault simulation box according to claim 1, wherein: the surface of the box body (100) is also provided with a plurality of detection sockets, and the throttle valve sensor interface (102) to the CAN interface (111) are connected with the detection sockets.