Signal processing circuit of electronic throttle
By integrating signal processing circuitry, the problem of signal susceptibility to noise and interference in traditional electronic throttle systems is solved, achieving circuit simplification and cost reduction, while improving control accuracy and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-27
AI Technical Summary
In traditional electronic throttle systems, sensor signals are susceptible to power supply noise, electromagnetic interference, and poor grounding, leading to signal drift or control errors. Furthermore, the actuator drive circuit lacks an effective current loop design, resulting in complex circuitry and high costs.
An integrated signal processing circuit was designed, including a sensor signal input and conditioning circuit, a power input and protection circuit, and an anti-interference circuit. By combining inductors, TVS diodes, and capacitors, signal filtering, dynamic power compensation, and common-mode interference suppression are achieved.
It achieves efficient and precise control of dot matrix headlights, with a simple circuit structure, good stability and low cost, effectively suppressing signal noise and interference, and improving system reliability.
Smart Images
Figure CN224052570U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile electronic control technology, concretely relates to a signal processing circuit of electronic throttle. BACKGROUND
[0002] In the traditional electronic throttle system, the sensor signal is susceptible to power supply noise, electromagnetic interference (EMI) and poor grounding, resulting in signal drift or control error. In addition, the actuator drive circuit lacks effective current loop design, which may cause signal reflection or power loss. In the prior art, the power supply protection and anti-interference module are usually designed separately, resulting in complex circuit and high cost. Therefore, there is an urgent need for an integrated, high-reliability signal processing circuit. SUMMARY
[0003] The utility model aims at providing a signal processing circuit of electronic throttle, which can realize efficient and accurate control of dot matrix car headlamp, has the advantages of simple structure, good stability and low cost, etc., to solve the above problems existing in the prior art.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme,
[0005] A signal processing circuit of electronic throttle, characterized by comprising connectors J1, J2, J3 and J4, the connector J1 is connected with a sensor signal input and conditioning circuit, receives the original signal of the throttle pedal position sensor and performs filtering and conditioning; the connector J2 is connected with a power input and protection circuit, and the electronic throttle system provides stable power supply; the connector J3 is connected with an actuator for outputting the control signal generated by the ECU, driving the actuator, and closing the current loop through the ground pin, and the connector J4 is connected with an anti-interference circuit.
[0006] The utility model further sets up, the sensor signal input and conditioning circuit includes inductance L1, TVS pipe D1 and electric capacity C3, TVS pipe D1 and electric capacity C3 are connected in parallel and are accessed between inductance L1 and connector J1.
[0007] The utility model further sets up, the power input and protection circuit includes TVS pipe D3, inductance L2, hall sensor Q1, the both ends of inductance L2 are connected with electric capacity C7 and electric capacity C8 that parallelly connect to each other, inductance L2 connects the 2 feet of hall sensor.
[0008] The utility model further sets up, the anti-interference circuit includes TVS pipe D2, electric capacity C10 and hall sensor Q2, the 1 foot and the 2 feet of hall sensor Q2 are connected with debugging resistance R1, electric capacity C10 and hall sensor Q2 are connected in parallel, one end is connected with TVS pipe D2, and the other end is grounded.
[0009] The utility model discloses the beneficial effect of:
[0010] Through connector J1-J4 integrated signal conditioning, power protection, actuator drive and anti-interference module. J1 adopts inductance-TVS-capacitance filter to suppress signal noise;J2 realizes power dynamic compensation through Hall sensor Q1 and pi filter;J3 designs impedance matching and independent ground loop;J4 utilizes Hall sensor Q2 and capacitor network to suppress common mode interference. BRIEF DESCRIPTION OF DRAWINGS
[0011] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:
[0012] Figure 1 It is the electrical schematic diagram of the utility model embodiment. DETAILED DESCRIPTION
[0013] The embodiments of the present application will be described in detail below with the drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
[0014] As Figure 1 Indicated, the utility model discloses a kind of signal processing circuits of electronic accelerator, including connector J1, connector J2, connector J3 and connector J4, the connector J1 is connected with sensor signal input and conditioning circuit, receives the original signal of accelerator pedal position sensor, and carries out filtering and conditioning;The connector J2 is connected with power input and protection circuit, and electronic accelerator system provides stable power supply;Connector J3 connects actuator, for outputting the control signal generated by ECU, drive section actuator, and pass through ground pin closed current loop, connector J4 is connected with anti-interference circuit.
[0015] The utility model further sets, the sensor signal input and conditioning circuit includes inductance L1, TVS tube D1 and capacitor C3, TVS tube D1 and capacitor C3 are connected in parallel and are accessed between inductance L1 and connector J1.
[0016] The utility model further sets, the power input and protection circuit includes TVS tube D3, inductance L2, Hall sensor Q1, the both ends of inductance L2 are connected with capacitor C7 and capacitor C8 that are parallel to each other, and the 2 pin of Hall sensor is connected to inductance L2.
[0017] The utility model further sets up, the anti -interference circuit includes TVS pipe D2, capacitor C10 and hall sensor Q2, has debugging resistance R1 between 1 foot and 2 foot of hall sensor Q2, capacitor C10 is parallel with hall sensor Q2, and one end is connected with TVS pipe D2, and the other end is grounded.
[0018] The utility model discloses a connector J1-J4 integrated signal conditioning, power protection, actuator drive and anti -interference module. J1 adopts inductance-TVS-capacitor filter to suppress signal noise;J2 realizes power dynamic compensation through hall sensor Q1 and π type filter;J3 designs impedance matching and independent ground loop;J4 utilizes hall sensor Q2 and capacitor network to suppress common mode interference.
[0019] As some terms are used in the description and claims, those skilled in the art can understand that the same components can be referred to by different names by hardware manufacturers. The description and claims of the present application do not distinguish components by name, but by the functional difference between components. As mentioned throughout the description and claims, "comprising" is an open term, which should be interpreted as "including but not limited to" or "comprising but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.
[0020] It should be noted that the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusions, so that the products or systems comprising a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such products or systems. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of another identical element in the product or system comprising the element.
[0021] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention disclosed herein by the above teachings or related art or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.
Claims
1. A signal processing circuit for an electronic throttle, characterized by The connector J1 is connected with a sensor signal input and conditioning circuit, receives the original signal of the accelerator pedal position sensor, and performs filtering and conditioning; the connector J2 is connected with a power input and protection circuit, and the electronic throttle system provides stable power; the connector J3 is connected with an actuator for outputting the control signal generated by the ECU, driving the actuator, and closing the current loop through the ground pin, and the connector J4 is connected with an anti-interference circuit.
2. The signal processing circuit of an electronic accelerator according to claim 1, wherein The sensor signal input and conditioning circuit comprises an inductor L1, a TVS tube D1 and a capacitor C3, the TVS tube D1 and the capacitor C3 are connected in parallel and then connected between the inductor L1 and the connector J1.
3. The signal processing circuit of an electronic throttle according to claim 1, wherein The power input and protection circuit comprises a TVS tube D3, an inductor L2, a Hall sensor Q1, the inductor L2 is connected with a capacitor C7 and a capacitor C8 in parallel, and the inductor L2 is connected with the 2 pin of the Hall sensor.
4. The signal processing circuit of an electronic throttle according to claim 1, wherein The anti-interference circuit comprises a TVS tube D2, a capacitor C10 and a Hall sensor Q2, the 1 pin and the 2 pin of the Hall sensor Q2 are connected with a debugging resistor R1, the capacitor C10 is connected with the Hall sensor Q2 in parallel, one end of the capacitor C10 is connected with the TVS tube D2, and the other end is grounded.