Fuel oil or pure electric heavy truck accelerator pedal with overvoltage self-repairing function

Abstract

The utility model relates to a fuel oil or pure electric heavy truck accelerator pedal with an overvoltage self-repairing function. The fuel oil or pure electric heavy truck accelerator pedal can prevent impact of large current in a whole truck circuit and strong static electricity in air. Comprising an accelerator pedal first ground APS1GND (1), an accelerator pedal first signal APS1 (2), an accelerator pedal first electric APS1 5V (3), a chip I (4), a voltage withstanding circuit I (5), an accelerator pedal second ground APS2 GND (6), an accelerator pedal second signal APS2 (7), an accelerator pedal second electric APS2 5V (8), a chip II (9) and a voltage withstanding circuit II (10). An accelerator pedal I ground APS1 GND (1), an accelerator pedal I signal APS1 (2) and an accelerator pedal I power APS1 5V (3) correspond to a working circuit of a chip I (4), and a voltage withstanding circuit I (5) is connected with a power supply circuit of a chip I5V and is grounded; an accelerator pedal second ground APS2 GND (6), an accelerator pedal second signal APS2 (7) and an accelerator pedal second power APS2 5V (8) correspond to a working circuit of the chip II (9); and a voltage withstanding circuit II (10) is connected with a power supply circuit of the chip II 5V and is grounded. According to the utility model, the safety of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to a heavy truck accelerator pedal, in particular to a fuel or pure electric heavy truck accelerator pedal with an overvoltage self-repair function. Background Art

[0002] Currently, the electronic control principles of electronically controlled engines or pure electric motors commonly used in fuel or pure electric heavy-duty trucks are compatible with Bosch's electronically controlled dual-mode throttle, so electronically controlled dual-mode throttle pedals are widely used in fuel or pure electric heavy-duty trucks.

[0003] The dual-mode accelerator pedals used in gasoline-powered or all-electric heavy-duty trucks are susceptible to high currents from the engine or motor circuits and strong static electricity within the cab, which can damage the pedal's electronic components and cause the pedal to fail. Accelerator pedal failure can pose a dangerous hazard to the driver and, in severe cases, result in vehicle damage and fatalities. Utility Model Content

[0004] The purpose of the utility model is to design an accelerator pedal with an overvoltage self-repair function, which can prevent the impact of large current in the vehicle circuit and strong static electricity in the air, prevent the accelerator pedal from being damaged, and reduce the cost of replacing the pedal.

[0005] The utility model is realized by the following technical solutions:

[0006] A fuel or pure electric heavy-duty truck accelerator pedal with an overvoltage self-repair function includes an accelerator pedal ground APS1GND①, an accelerator pedal signal APS1②, an accelerator pedal voltage APS1 5V③, a chip I④, a withstand voltage circuit 1⑤ (a 100pf, 50V MOS tube), an accelerator pedal ground APS2 GND⑥, an accelerator pedal signal APS2⑦, an accelerator pedal voltage APS2 5V⑧, a chip II⑨, and a withstand voltage circuit 2①0 (a 100pf, 50V MOS tube).

[0007] The accelerator pedal ground APS1 GND①, accelerator pedal signal APS1②, and accelerator pedal power APS15V③ correspond to the working circuit of chip I④, and the withstand voltage circuit ⑤ is connected to the power supply circuit of chip I5V and grounded;

[0008] The throttle pedal second ground APS2 GND⑥, throttle pedal second signal APS2⑦, and throttle pedal second voltage APS25V⑧ correspond to the working circuit of chip II⑨. The withstand voltage circuit 2①0 is connected to the chip II 5V power supply circuit and grounded.

[0009] When the voltage of accelerator pedal 1 to APS1 5V③ or the voltage of accelerator pedal 2 to APS2 5V⑧ exceeds 12V, the withstand voltage circuit 1 ⑤⑤ and the withstand voltage circuit 2 ⑩ ①0 are temporarily disconnected to protect the entire sensor; when the voltage of accelerator pedal 1 to APS1 5V③ or the voltage of accelerator pedal 2 to APS2 5V⑧ drops to less than 12V, the withstand voltage circuit 1 ⑤ and the withstand voltage circuit 2 ①0 are reconnected to restore the sensor operation; the accelerator pedal 1 ground APS1 GND① and APS1 5V③ are inputs. When the input is normal, the accelerator pedal 1 signal APS1②② output is 0.75±0.15V to 3.84±0.25V depending on the throttle opening; the accelerator pedal 2 ground APS2 GND⑥⑥ and APS2 5V⑧ are inputs. When the input is normal, the accelerator pedal 2 signal APS2⑦ output is 0.375±0.2V to 1.92±0.3V depending on the throttle opening.

[0010] This utility model provides an accelerator pedal with overvoltage protection for heavy-duty trucks equipped with electronically controlled engines or pure electric motors, reducing the economic losses caused by high current burning of pedal components. It also improves vehicle safety and avoids various accidents caused by accelerator pedal failure during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a circuit block diagram of the utility model;

[0012] Figure 2 It is the characteristic curve of the relationship between the accelerator pedal position and voltage of the utility model;

[0013] Figure 3 This is an electrical principle diagram of the present utility model. DETAILED DESCRIPTION

[0014] like Figure 1-3As shown, the utility model is an accelerator pedal with a self-protection function, which mainly consists of an accelerator pedal ground APS1 GND①, an accelerator pedal signal APS1②②, an accelerator pedal power APS1 5V③③, chips I④④, a withstand voltage circuit 1⑤⑤ (100pf, 50V MOS tube), an accelerator pedal second ground APS2 GND⑥⑥, an accelerator pedal second signal APS2⑦⑦, an accelerator pedal second power APS2 5V⑧, a chip II⑨, and a withstand voltage circuit 2①0 (100pf, 50V MOS tube). The circuitry includes withstand voltage circuits 1 and 5 (100pf, 50V MOS transistors) and 2 (100pf, 50V MOS transistors). When the voltage on accelerator pedal 1 (APS15V③) or accelerator pedal 2 (APS25V⑧) exceeds 12V (theoretically, it can reach a maximum of 50V), withstand voltage circuits 1 and 5 (100pf, 50V MOS transistors) and 2 (100pf, 50V MOS transistors) temporarily disconnect the circuit to protect the entire sensor. When the voltage on accelerator pedal 1 (APS15V③) or accelerator pedal 2 (APS25V⑧) drops below 12V, withstand voltage circuits 1 and 5 (100pf, 50V MOS transistors) and 2 (100pf, 50V MOS transistors) reconnect the circuit, restoring sensor operation. This withstand voltage circuit effectively protects chips 1 and 4 and chips 2 and 9 from high voltage breakdown, improving product durability. The accelerator pedal's first ground, APS1GND①, and APS1 5V③ serve as inputs. When the inputs are normal, the accelerator pedal's first signal, APS1②, outputs a range of 0.75±0.15V to 3.84±0.25V depending on the throttle opening. The accelerator pedal's second ground, APS2GND⑥, and APS2 5V⑧ serve as inputs. When the inputs are normal, the accelerator pedal's second signal, APS2⑦, outputs a range of 0.375±0.2V to 1.92±0.3V depending on the throttle opening. Using the differential calculation method, the difference in accelerator pedal output (accelerator pedal first signal, APS1② - accelerator pedal second signal, APS2⑦) can be calculated. Based on these voltage changes, the real-time accelerator pedal opening can be calculated.

[0015] This utility model provides an overvoltage-protected accelerator pedal for heavy-duty trucks equipped with electronically controlled engines or pure electric motors. By adding a voltage-resistant circuit to the accelerator pedal circuit, the device temporarily disconnects the circuit when high current or static electricity interference occurs, protecting internal electronic components. When the high current disappears, the device automatically resets to ensure smooth circuit operation.

Claims

1. A fuel or electric heavy-duty truck accelerator pedal with overvoltage self-repair function, characterized by: It includes accelerator pedal one ground APS1 GND①, accelerator pedal one signal APS1②, accelerator pedal one power APS15V③, chip I④, withstand voltage circuit one ⑤, accelerator pedal two ground APS2 GND⑥, accelerator pedal two signal APS2⑦, accelerator pedal two power APS25V⑧, chip II ⑨, withstand voltage circuit two ①0; accelerator pedal one ground APS1GND①, accelerator pedal one signal APS1②, accelerator pedal one power APS15V③ correspond to the working circuit of chip I④, withstand voltage circuit one ⑤ is connected to the power supply circuit of chip I5V and grounded; The throttle pedal second ground APS2 GND⑥, throttle pedal second signal APS2⑦, and throttle pedal second voltage APS25V⑧ correspond to the working circuit of chip II⑨. The withstand voltage circuit 2①0 is connected to the chip II 5V power supply circuit and grounded. When the voltage of accelerator pedal 1 APS15V③ or accelerator pedal 2 APS25V⑧ exceeds 12V, the withstand voltage circuit 1⑤ and withstand voltage circuit 2①0 are temporarily disconnected to protect the entire sensor; when the voltage of accelerator pedal 1 APS15V③ or accelerator pedal 2 APS25V⑧ drops to less than 12V, the withstand voltage circuit 1⑤ and withstand voltage circuit 2①0 are reconnected to restore sensor operation; accelerator pedal 1 ground APS1 GND① and APS15V③ are inputs. When the input is normal, the output of accelerator pedal 1 signal APS1② is 0.75±0.15V to 3.84±0.25V depending on the throttle opening; accelerator pedal 2 ground APS2 GND⑥ and APS25V⑧ are inputs. When the input is normal, the output of accelerator pedal 2 signal APS2⑦ is 0.375±0.2V to 1.92±0.3V depending on the throttle opening.

2. The accelerator pedal for a fuel or electric heavy truck with an overvoltage self-repair function according to claim 1 is characterized by: The withstand voltage circuit 1⑤ and the withstand voltage circuit 2①0 are 100pf, 50V MOS tubes.

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