Switch-controlled electronic accelerator pedal sensor circuit

Abstract

The utility model discloses a switch-controlled electronic accelerator pedal sensor circuit, which comprises an accelerator pedal, a magnet, external equipment, a power supply circuit, a Hall module, a signal processing circuit and an output interface circuit, the magnet synchronously moves along with the accelerator pedal, and the Hall module, the signal processing circuit and the output interface circuit are all connected with the power supply circuit. The Hall module is matched with the magnet, the Hall module is connected with the output interface circuit through the signal processing circuit, the Hall module is connected with the output interface circuit, and the output interface circuit is connected with external equipment. The utility model has the advantages of simple structure and small volume, and prevents the phenomena of sensor failure and the like caused by improper operation or misoperation.

Description

Technical Field

[0001] The utility model relates to an accelerator pedal sensor circuit. Background Art

[0002] Traditional accelerator pedal position sensors usually use potentiometer sensors. The principle of potentiometer sensors is to sense the position of the accelerator pedal by measuring the change in the potentiometer's resistance value. When the accelerator pedal moves, the sliding contact of the potentiometer will also move, thereby changing the resistance value. Ultimately, this change in resistance value is converted into an electrical signal output. Potentiometer-type accelerator pedal sensors will wear out and have poor contact after long-term use. Improper operation or misoperation may cause sensor failure and other phenomena, resulting in poor reliability. Utility Model Content

[0003] The purpose of the present utility model is to solve the problems raised in the above background technology and to provide a switch-controlled electronic accelerator pedal sensor circuit.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A switch-controlled electronic accelerator pedal sensor circuit includes a power supply circuit, a Hall module, a signal processing circuit and an output interface circuit. The Hall module, the signal processing circuit and the output interface circuit are all connected to the power supply circuit, and the Hall module is connected to the output interface circuit.

[0006] Preferably, the power supply circuit includes a diode D1, a diode D2, a diode D3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, and an output-adjustable DC-DC step-down regulator U1. The positive electrode of the diode D1 is input to a DC power supply VDD, the capacitor C1 and the capacitor C2 are connected in parallel between the negative electrode of the diode D1 and the ground signal GND, the power input terminal VIN and the on-resistance terminal RON / SD of the output-adjustable DC-DC step-down regulator U1 are connected through the resistor R1, the ground terminal RIN of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND, the power terminal VCC of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND through the capacitor C3, and the resistor of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND. Terminal RCL is connected to the ground signal GND through resistor R2. Terminal BST of the output-adjustable DC-DC step-down regulator U1 is connected to the enable terminal SW through capacitor C4. The enable terminal SW of the output-adjustable DC-DC step-down regulator U1 is connected to the cathode of the diode D2, and the anode of the diode D2 is connected to the ground signal GND. A feedback terminal FB of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND through resistor R4. The feedback terminal FB of the output-adjustable DC-DC step-down regulator U1 is connected to one end of a resistor R3. The other end of the resistor R3 is connected to the enable terminal SW of the output-adjustable DC-DC step-down regulator U1 through an inductor L1. The other end of the resistor R3 is connected to the ground signal GND through capacitor C5. The other end of the resistor R3 is connected to the anode of the diode D3. The cathode of the diode D3 outputs the low-voltage DC power supply VCC.

[0007] Preferably, the model of the DC-DC step-down regulator U1 with adjustable output is LM5009. Preferably, the Hall module includes a Hall chip U2, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, and a magnetic bead FB1. The power supply terminal VDD1 of the Hall chip U2 is connected to the ground signal GND through the capacitor C6, and the ground terminal GND1 and the test terminal TEST1 of the Hall chip U2 are respectively connected to the ground signal GND. A magnetic bead FB1 and a capacitor C7 are sequentially connected in series between the output terminal OUT1 of the Hall chip U2 and the ground signal GND. The common end of the capacitor C7 and the magnetic bead FB1 are respectively connected to the signal processing circuit and the output interface circuit. The output terminal OUT2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C8. The output terminal OUT2 of the Hall chip U2 is connected to the signal processing circuit. The test terminal TEST2 of the Hall chip U2 and the ground terminal GND1 and the ground terminal GND2 are respectively connected to the ground signal GND. The power supply terminal VDD2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C9. The power supply terminal VDD2 of the Hall chip U2 is connected to the negative pole of the diode D3.

[0008] Preferably, the signal processing circuit includes a comparator U3A, a comparator U3B, an optocoupler U4, an optocoupler U5, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C10, a capacitor C11, and a capacitor C12, one end of the resistor R5 is connected to a low-voltage DC power supply VCC, the other end of the resistor R5 is connected to a ground signal GND through a resistor R6, the other end of the resistor R5 is connected to an OUT2 end of a Hall chip U2 through a resistor R9, the other end of the resistor R5 is connected to a ground signal GND through a capacitor C12, the other end of the resistor R5 is connected to a non-inverting input end of a comparator U3B, the inverting input end of a comparator U3B is connected to a non-inverting input end of a comparator U3A, the non-inverting input end of a comparator U3B is connected to an inverting input end of a comparator U3A, and the non-inverting input end and the output end of the comparator U3B are connected. A resistor R10 is connected, one end of the resistor R7 is connected to one end of the common end of the capacitor C7 and the magnetic bead FB1, the common end of the capacitor C7 and the magnetic bead FB1 is connected to the ground signal GND through the capacitor C10, the common end of the capacitor C7 and the magnetic bead FB1 is connected to the non-inverting input end of the comparator U3A, a resistor R8 is connected between the non-inverting input end and the output end of the comparator U3A, the output end of the comparator U3A is connected to the cathode of the optocoupler U4, the output end of the comparator U3B is connected to the cathode of the optocoupler U5, the anode of the optocoupler U4 is connected to the low-voltage DC power supply VCC through the resistor R11, the anode of the optocoupler U5 is connected to the low-voltage DC power supply VCC through the resistor R12, the collector of the optocoupler U4 is connected to the collector of the optocoupler U5, the emitter of the optocoupler U4 and the emitter of the optocoupler U5 are respectively connected to the output interface circuit, and the low-voltage DC power supply VCC is connected to the ground signal GND through the capacitor C11.

[0009] Preferably, the output interface circuit is an output connector SIP composed of 6 pins, the emitter and collector of the optocoupler U4 are connected to the output connector SIP, the emitter of the optocoupler U5 is connected to the output connector SIP, and the DC power supply VDD, the ground signal GND and one end of the capacitor C7 are all connected to the output connector SIP.

[0010] Preferably, the model of the Hall chip U2 is HAR3725DJ-A.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The electronic accelerator pedal sensor in this utility model has a simple structure, small size, and is easy to install and debug on site;

[0013] 2. The power circuit input part of the utility model adopts a wide voltage range input, which can better meet different market demands;

[0014] 3. A protective device, anti-reverse polarity diode D1, is added to the power input interface of the utility model to prevent the power supply from being reversely connected and damaging the subsequent circuit;

[0015] 4. The power supply circuit of the utility model adopts a DC-DC step-down regulator with adjustable output, which makes the power supply circuit highly efficient and has good output voltage ripple and noise;

[0016] 5. The signal processing circuit in this utility model adopts an anti-touch design. It will start to work when the starting voltage is greater than 0.8V, and will not work when the starting voltage is less than 0.8V, so as to prevent the sensor from failing due to improper operation or misoperation.

[0017] 6. In the output circuit of the present invention, the comparison is performed by a comparator and the output is sent to the optocoupler input terminal, and finally output to the output interface circuit through the optocoupler output terminal to the external device, so that the transmission process will not be affected by electromagnetic interference, thereby ensuring stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the module connection diagram of the utility model;

[0019] Figure 2 is the circuit schematic diagram of the power supply circuit;

[0020] Figure 3 This is the circuit schematic diagram of the Hall module;

[0021] Figure 4 is a circuit schematic diagram of a signal processing circuit;

[0022] Figure 5 This is the circuit schematic diagram of the output interface circuit. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings:

[0024] like Figure 1 As shown, a switch-controlled electronic accelerator pedal sensor circuit comprises a power supply circuit 1, a Hall module 3, a signal processing circuit 4, and an output interface circuit 6. The Hall module 3, signal processing circuit 4, and output interface circuit 6 are all connected to the power supply circuit 1. The Hall module 3 is connected to the output interface circuit 6 via the signal processing circuit 4. The Hall module 3 is connected to the output interface circuit 6, and the output interface circuit 6 is used to connect to an external device 5. An existing electronic accelerator pedal includes a magnet 2 and an external device 5. The magnet 2 is mounted on the accelerator pedal and moves synchronously with the accelerator pedal. The Hall module 3 is positioned within the magnetic field of the magnet 2 and generates a voltage signal based on changes in the magnetic field.

[0025] The power supply circuit 1 is used to convert high-voltage DC power into low-voltage DC power, the Hall module 3 is used to sense the magnet 2 to generate an induction signal, and the signal processing circuit 4 is used to process the induction signal and output it to the output interface circuit 6.

[0026] like Figure 2 As shown, the power supply circuit 1 includes a diode D1, a diode D2, a diode D3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, and an output-adjustable DC-DC step-down regulator U1. The positive electrode of the diode D1 is input to the DC power supply VDD, and the capacitor C1 and the capacitor C2 are connected in parallel between the negative electrode of the diode D1 and the ground signal GND. The power input terminal VIN and the on-resistance terminal RON / SD of the output-adjustable DC-DC step-down regulator U1 are connected through the resistor R1. The ground terminal RIN of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND. The power supply terminal VCC of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND through the capacitor C3. The output of the adjustable DC-DC step-down regulator U1 is connected to the ground signal GND. Resistor terminal RCL is connected to ground signal GND through resistor R2. A capacitor C4 connects the BST terminal and enable terminal SW of the adjustable-output DC-DC step-down regulator U1. The enable terminal SW of the adjustable-output DC-DC step-down regulator U1 is connected to the cathode of diode D2, and the anode of diode D2 is connected to ground signal GND. A feedback terminal FB of the adjustable-output DC-DC step-down regulator U1 is connected to ground signal GND through resistor R4. The feedback terminal FB of the adjustable-output DC-DC step-down regulator U1 is connected to one end of resistor R3, the other end of which is connected to the enable terminal SW of the adjustable-output DC-DC step-down regulator U1 through inductor L1. The other end of resistor R3 is connected to ground signal GND through capacitor C5. The other end of resistor R3 is connected to the anode of diode D3, and the cathode of diode D3 outputs low-voltage DC power supply VCC. The model of the adjustable-output DC-DC step-down regulator U1 is LM5009.

[0027] like Figure 3As shown, the Hall module 3 includes a Hall chip U2, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, and a magnetic bead FB1. The power supply terminal VDD1 of the Hall chip U2 is connected to the ground signal GND through the capacitor C6, and the ground terminal GND1 and the test terminal TEST1 of the Hall chip U2 are respectively connected to the ground signal GND. A magnetic bead FB1 and a capacitor C7 are sequentially connected in series between the output terminal OUT1 of the Hall chip U2 and the ground signal GND. The common end of the capacitor C7 and the magnetic bead FB1 is respectively connected to the signal processing circuit 4 and the output interface circuit 6. The output terminal OUT2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C8. The output terminal OUT2 of the Hall chip U2 is connected to the signal processing circuit 4. The test terminal TEST2 of the Hall chip U2 and the ground terminal GND1 and the ground terminal GND2 are respectively connected to the ground signal GND. The power supply terminal VDD2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C9. The power supply terminal VDD2 of the Hall chip U2 is connected to the cathode of the diode D3.

[0028] like Figure 4As shown, the signal processing circuit 4 includes a comparator U3A, a comparator U3B, an optocoupler U4, an optocoupler U5, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C10, a capacitor C11, and a capacitor C12. One end of the resistor R5 is connected to the low-voltage DC power supply VCC, the other end of the resistor R5 is connected to the ground signal GND through the resistor R6, the other end of the resistor R5 is connected to the OUT2 end of the Hall chip U2 through the resistor R9, the other end of the resistor R5 is connected to the ground signal GND through the capacitor C12, the other end of the resistor R5 is connected to the non-inverting input end of the comparator U3B, the inverting input end of the comparator U3B is connected to the non-inverting input end of the comparator U3A, the non-inverting input end of the comparator U3B is connected to the inverting input end of the comparator U3A, and the inverting input end of the comparator U3B is connected to the inverting input end of the comparator U3B. A resistor R10 is connected between the non-inverting input and output terminals. One end of the resistor R7 is connected to one end of the common terminal of the capacitor C7 and the magnetic bead FB1. The common terminal of the capacitor C7 and the magnetic bead FB1 is connected to the ground signal GND through the capacitor C10. The common terminal of the capacitor C7 and the magnetic bead FB1 is connected to the non-inverting input terminal of the comparator U3A. A resistor R8 is connected between the non-inverting input and output terminals of the comparator U3A. The output terminal of the comparator U3A is connected to the cathode of the optocoupler U4. The output terminal of the comparator U3B is connected to the cathode of the optocoupler U5. The anode of the optocoupler U4 is connected to the low-voltage DC power supply VCC through the resistor R11. The anode of the optocoupler U5 is connected to the low-voltage DC power supply VCC through the resistor R12. The collector of the optocoupler U4 is connected to the collector of the optocoupler U5. The emitters of the optocoupler U4 and the emitters of the optocoupler U5 are respectively connected to the output interface circuit 6. The model of the Hall chip U2 is HAR3725DJ-A. The low-voltage DC power supply VCC is connected to the ground signal GND through the capacitor C11.

[0029] like Figure 5 As shown, the output interface circuit 6 is a 6-pin output connector SIP. The emitter and collector of the optocoupler U4 are both connected to the output connector SIP. The emitter of the optocoupler U5 is also connected to the output connector SIP. The DC power supply VDD, the ground signal GND, and one end of the capacitor C7 are also connected to the output connector SIP.

[0030] Depend on Figure 2As shown in the figure, the power supply circuit is composed of a DC-DC power supply chip and a power protection circuit. The DC power supply VDD can input a 9-70V DC power supply. Therefore, the DC power supply VDD adopts a wide voltage range input, which can better meet different market needs. Among them, D1 is an anti-reverse polarity diode to prevent the reverse polarity of the power supply from damaging the subsequent circuit. C1 and C2 are input filter capacitors to make the U1 input voltage more stable. C3 is a decoupling capacitor that can effectively absorb transient current in the circuit, thereby stabilizing the output voltage. R2 is a current limiting resistor, C4 is a bootstrap capacitor, R3 and R4 are a series voltage divider used to adjust the output voltage. C5 is a filter capacitor to make the U1 output signal more stable. D3 is a voltage regulator diode to make the U1 output voltage more stable.

[0031] like Figure 3 As shown in the figure, in the Hall module, C6 and C9 are the power supply input filter capacitors for the Hall chip U2, C7 and C8 are the output filter capacitors for the Hall chip U2, and the magnetic bead FB1 is used to eliminate high-frequency noise interference on the signal line to make the output signal more stable.

[0032] like Figure 4 As shown, the signal processing circuit 4 consists of a comparator U3A, a comparator U3B and two optocouplers with resistors and capacitors. The signals sensed by the two output Hall chips are compared in voltage value by the comparator to control the on or off state of the optocoupler diode, and then the optocoupler outputs high and low level signals to the output interface circuit. When APS>0.8V, U3A outputs a high level, and optocoupler U4 is off. When APS<0.8V, U3A outputs a low level, and optocoupler U4 is on. When APS>0.8V, U3B outputs a low level, and optocoupler U5 is on. When APS<0.8V, U3B outputs a high level, and optocoupler U5 is off. The external IVS_COM is 5V, and IVS_NC and IVS_NO are the sensor's output signals. 0.8V is the sensor's switching point. The IVS_NC and IVS_NO signals are complementary, meaning one is high when the other is low. Ultimately, the external device determines whether to use the IVS_NC or IVS_NO signal. Therefore, the sensor will only operate when the startup voltage is >0.8V, and will not operate when the startup voltage is <0.8V. This prevents sensor failure due to improper operation or malfunction.

[0033] like Figure 5 As shown in FIG, the output interface circuit comprises an output connector composed of 6 pins, and the high and low level signals output by the optocoupler are output to the external device through the connector.

[0034] The main working principle of this utility model is as follows: when the accelerator pedal moves, the corresponding magnet will also move. The deflection of the sensor Hall chip in the magnetic field of the magnet is used to sense the position of the accelerator pedal. In this process, the Hall chip transmits the sensed signal to the two input ends of the comparator. After comparison, the voltage signal is given to the input end of the optocoupler, and then two high and low level signals are output through the optocoupler, and finally output to the external device through the output interface circuit.

[0035] This utility model adopts the principle of Hall effect sensor and uses the deflection of the Hall chip in the sensor in the magnetic field to sense the position of the accelerator pedal. When the accelerator pedal moves, the corresponding magnet will also move, thereby generating a voltage signal in the Hall chip, which is then converted into a digital signal of high and low levels by the signal processing circuit and output to the external device. The Hall chip and the magnet adopt a non-contact structure. Compared with the traditional potentiometer sensor, it improves the wear and poor contact caused by long-term use. The output adopts digital signal high and low level output. The circuit design is touch-proof to prevent improper operation or misoperation that may cause sensor failure, thereby improving the reliability of the accelerator pedal sensor.

[0036] It should be noted that the above is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiment and may be subject to many variations. In short, all variations that can be directly derived or associated with the content of the present invention by a person skilled in the art should be considered to be within the scope of protection of the present invention.

Claims

1. A switch-controlled electronic accelerator pedal sensor circuit, characterized in that: The device comprises a power supply circuit (1), a Hall module (3), a signal processing circuit (4) and an output interface circuit (6); the Hall module (3), the signal processing circuit (4) and the output interface circuit (6) are all connected to the power supply circuit (1); the Hall module (3) is connected to the output interface circuit (6) via the signal processing circuit (4); and the Hall module (3) is connected to the output interface circuit (6).

2. The switch-controlled electronic accelerator pedal sensor circuit according to claim 1, characterized in that: The power supply circuit (1) comprises a diode D1, a diode D2, a diode D3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, and an output-adjustable DC-DC step-down regulator U1. The positive electrode of the diode D1 is input to a DC power supply VDD. The capacitor C1 and the capacitor C2 are connected in parallel between the negative electrode of the diode D1 and a ground signal GND. The power input terminal VIN and the on-resistance terminal RON / SD of the output-adjustable DC-DC step-down regulator U1 are connected via the resistor R1. The ground terminal RIN of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND. The power terminal VCC of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND via the capacitor C3. The resistors of the output-adjustable DC-DC step-down regulator U1 are connected to the ground signal GND. Terminal RCL is connected to the ground signal GND through resistor R2. Terminal BST of the output-adjustable DC-DC step-down regulator U1 is connected to the enable terminal SW through capacitor C4. The enable terminal SW of the output-adjustable DC-DC step-down regulator U1 is connected to the cathode of the diode D2, and the anode of the diode D2 is connected to the ground signal GND. A feedback terminal FB of the output-adjustable DC-DC step-down regulator U1 is connected to the ground signal GND through resistor R4. The feedback terminal FB of the output-adjustable DC-DC step-down regulator U1 is connected to one end of a resistor R3. The other end of the resistor R3 is connected to the enable terminal SW of the output-adjustable DC-DC step-down regulator U1 through an inductor L1. The other end of the resistor R3 is connected to the ground signal GND through capacitor C5. The other end of the resistor R3 is connected to the anode of the diode D3. The cathode of the diode D3 outputs the low-voltage DC power supply VCC.

3. The switch-controlled electronic accelerator pedal sensor circuit according to claim 2, characterized in that: The model of the output adjustable DC-DC step-down regulator U1 is LM5009.

4. The switch-controlled electronic accelerator pedal sensor circuit according to claim 3, characterized in that: The Hall module (3) comprises a Hall chip U2, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, and a magnetic bead FB1. The power supply terminal VDD1 of the Hall chip U2 is connected to the ground signal GND through the capacitor C6. The ground terminal GND1 and the test terminal TEST1 of the Hall chip U2 are respectively connected to the ground signal GND. A magnetic bead FB1 and a capacitor C7 are sequentially connected in series between the output terminal OUT1 of the Hall chip U2 and the ground signal GND. The common end of the capacitor C7 and the magnetic bead FB1 is respectively connected to the signal processing circuit (4) and the output interface circuit (6). The output terminal OUT2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C8. The output terminal OUT2 of the Hall chip U2 is connected to the signal processing circuit (4). The test terminal TEST2 of the Hall chip U2 and the ground terminals GND1 and GND2 are respectively connected to the ground signal GND. The power supply terminal VDD2 of the Hall chip U2 is connected to the ground signal GND through the capacitor C9. The power supply terminal VDD2 of the Hall chip U2 is connected to the negative electrode of the diode D3.

5. The switch-controlled electronic accelerator pedal sensor circuit according to claim 4, characterized in that: The signal processing circuit (4) includes a comparator U3A, a comparator U3B, an optocoupler U4, an optocoupler U5, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C10, a capacitor C11, and a capacitor C12, one end of the resistor R5 is connected to a low-voltage DC power supply VCC, the other end of the resistor R5 is connected to a ground signal GND through the resistor R6, the other end of the resistor R5 is connected to an OUT2 end of a Hall chip U2 through the resistor R9, the other end of the resistor R5 is connected to a ground signal GND through the capacitor C12, the other end of the resistor R5 is connected to a non-inverting input end of the comparator U3B, the inverting input end of the comparator U3B is connected to the non-inverting input end of the comparator U3A, the non-inverting input end of the comparator U3B is connected to the inverting input end of the comparator U3A, and the non-inverting input end and the output end of the comparator U3B are connected. Resistor R10, one end of the resistor R7 is connected to one end of the common end of the capacitor C7 and the magnetic bead FB1, the common end of the capacitor C7 and the magnetic bead FB1 is connected to the ground signal GND through the capacitor C10, the common end of the capacitor C7 and the magnetic bead FB1 is connected to the non-inverting input end of the comparator U3A, a resistor R8 is connected between the non-inverting input end and the output end of the comparator U3A, the output end of the comparator U3A is connected to the cathode of the optocoupler U4, the output end of the comparator U3B is connected to the cathode of the optocoupler U5, the anode of the optocoupler U4 is connected to the low-voltage DC power supply VCC through the resistor R11, the anode of the optocoupler U5 is connected to the low-voltage DC power supply VCC through the resistor R12, the collector of the optocoupler U4 is connected to the collector of the optocoupler U5, the emitter of the optocoupler U4 and the emitter of the optocoupler U5 are respectively connected to the output interface circuit (6), and the low-voltage DC power supply VCC is connected to the ground signal GND through the capacitor C11.

6. The switch-controlled electronic accelerator pedal sensor circuit according to claim 5, characterized in that: The output interface circuit (6) is an output connector SIP composed of 6 pins, the emitter and collector of the optocoupler U4 are connected to the output connector SIP, the emitter of the optocoupler U5 is connected to the output connector SIP, and the DC power supply VDD, the ground signal GND and one end of the capacitor C7 are all connected to the output connector SIP.

7. The switch-controlled electronic accelerator pedal sensor circuit according to claim 6, characterized in that: The model of the Hall chip U2 is HAR3725DJ-A.

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