Handle actuator with integrated capacitive pick-up and motor drive and vehicle

Abstract

The utility model discloses a handle executor and vehicle of integrated capacitor collection and motor drive, including integrated capacitor sensor and motor execution chip, motor execution chip sets up and is connected with handle motor of car door handle, can control the start -stop of handle motor, capacitor sensor sets up and detects the capacitor signal, when capacitor signal exceeds threshold value, capacitor sensor output signal gives motor drive chip, and motor execution chip controls handle motor drive folding / unfolding handle, through integrated capacitor sensor and motor execution chip, capacitor sensor gathers external capacitor signal, and after main chip judges as valid capacitor signal, directly through motor execution chip control handle motor's unfolding / folding action, need not additional vehicle body wire harness connection, need not to pass through vehicle body controller processing judgement, and response speed is fast, and user experience is better, and single module inside has completed from signal collection to function realization, and whole car wire harness cost effectively reduces.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronic components technology, specifically to a handle actuator and vehicle that integrates capacitance acquisition and motor drive. Background Technology

[0002] With the rapid development of automotive electronics, the number of electronic modules and sensors in vehicles is increasing, and the coordination between modules and modules, as well as between modules and various sensors, is becoming increasingly tight, significantly increasing the wiring harness of the entire vehicle. Vehicles have increasingly stringent requirements for weight, cost, and real-time functional response, leading to the widespread application of modules integrating sensors and actuators. While ensuring sensor acquisition and actuator driving functions, this approach can save on the vehicle's wiring harness and improve functional response speed.

[0003] Existing vehicles all use a distributed solution, which uses a capacitive handle sensor to detect changes in capacitance to identify hand touch actions. After determining that the touch signal is valid, the signal is sent to the vehicle control module (BCM) through the wiring harness for processing. Then, the BCM sends the drive command to the handle motor drive module through the wiring harness, and the module drives the handle to unfold / fold.

[0004] Therefore, due to the adoption of the above distributed scheme, the capacitive sensor collects the signal, which is sent to the body processor (BCM) through the wiring harness. Then, the drive command is transmitted to the handle actuator through the wiring harness, resulting in an increase in the number of wiring harnesses in the whole vehicle, an increase in cost, a longer function response time, and a poor user experience. Utility Model Content

[0005] To address the aforementioned technical problems associated with distributed solutions in vehicles, the purpose of this invention is to provide a handle actuator and vehicle that integrates capacitance acquisition and motor drive. By integrating a capacitance sensor and a motor actuator chip, the capacitance sensor acquires external capacitance signals. After the main chip determines that the capacitance signal is valid, it directly controls the handle motor's unfolding / folding action through the motor actuator chip. This eliminates the need for additional vehicle body wiring harness connections and vehicle body controller processing, resulting in faster response speeds and a better user experience. The entire process from signal acquisition to function realization is completed within a single module, effectively reducing the overall vehicle wiring harness cost.

[0006] To achieve the above objectives, the present invention provides an integrated capacitance acquisition and motor drive handle actuator, comprising an integrated capacitance sensor and a motor drive chip. The motor drive chip is configured to connect to the handle motor of the car door handle and can control the start and stop of the handle motor. The capacitance sensor is configured to detect capacitance signals. When the capacitance signal exceeds a threshold, the capacitance sensor outputs a signal to the motor drive chip, and the motor drive chip controls the handle motor to drive the handle to fold / unfold.

[0007] Furthermore, the capacitive sensor includes a circuit board and an SBC, MCU, and capacitive sensing electrode integrated on the circuit board. The SBC is connected to an external power supply and is connected to the MCU to provide it with operating power. The capacitive sensing electrode is connected to the MCU and is configured to generate a capacitance signal in real time according to the surrounding environment and transmit the capacitance signal to the capacitance processor MCU for processing.

[0008] Furthermore, the motor actuator chip is integrated on the circuit board and is connected to both the MCU and the handle motor. It is configured to receive control signals from the MCU to control the start and stop of the handle motor.

[0009] Furthermore, the capacitive sensing electrode includes first and second electrodes. To achieve the above objectives, this utility model provides a vehicle that includes the aforementioned integrated capacitor acquisition and motor-driven handle actuator.

[0010] Compared with the prior art, the handle actuator and vehicle with integrated capacitance acquisition and motor drive provided by this utility model have the following advantages: (1) A single module integrates capacitor signal acquisition, signal processing and judgment and handle motor drive output, with fast response speed and small delay, optimizing user comfort.

[0011] (2) Reduce the wiring harness connections between modules to reduce the wiring harness cost and vehicle weight of the whole vehicle. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 A schematic diagram of the integrated capacitance acquisition and motor drive handle actuator provided by this utility model.

[0014] Illustration: Capacitive sensor 100, motor actuator chip 200, handle motor 300; MCU processor 110, SBC module 120, capacitor sensing electrode assembly 130, first sensing electrode 131, second sensing electrode 132. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0016] See Figure 1 The diagram shown is a structural schematic of the handle actuator that integrates capacitance acquisition and motor drive provided by this utility model.

[0017] As shown in the figure, the integrated capacitance acquisition and motor drive handle actuator provided by this utility model includes two components: a capacitance sensor 100 and a motor actuator chip 200.

[0018] The capacitance sensor 100 and the motor actuator chip 200 are integrated together. The motor actuator chip 200 is configured to connect to the handle motor 300 of the car door handle and can control the start and stop of the handle motor 300; The capacitance sensor 100 is configured to detect capacitance signals. When the capacitance signal exceeds a threshold, the capacitance sensor 100 outputs a signal to the motor drive chip 200. The motor drive chip 200 then controls the handle motor 300 to drive the folding / unfolding handle.

[0019] This solution integrates a capacitance sensor 100 and a motor actuator chip 200 into a module. The capacitance sensor 100 collects external capacitance signals. Once the capacitance sensor 100 determines that the capacitance signal is valid, it directly drives the motor actuator chip 200 of its own module to execute the unfolding / folding action of the handle motor 300. No additional vehicle body wiring harness connection is required, and there is no need for processing and judgment by the vehicle body controller. The response speed is fast, the user experience is better, and the entire process from signal acquisition to function implementation is completed within a single module, effectively reducing the cost of the vehicle wiring harness.

[0020] Specifically, the capacitive sensor 100 includes a circuit board and an integrated MCU processor 110, an SBC module 120, and a capacitive sensing electrode assembly 130 on the circuit board. SBC module 120 is connected to an external power supply and is connected to MCU processor 110 to provide it with operating power; The MCU processor 110 is connected to the capacitive sensing electrode assembly 130. The capacitive sensing electrode assembly 130 is configured to collect capacitance signals and send them to the MCU processor 110 for processing. The motor actuator chip 200 is integrated on the aforementioned circuit board and is connected to the MCU processor 110 and the handle motor 300. It is configured to receive signals from the MCU processor 110 to control the start and stop of the handle motor 300.

[0021] Furthermore, the capacitive sensing electrode assembly 130 includes a first sensing electrode 131 and a second sensing electrode 132, which are respectively connected to the MCU processor 110 and configured to generate a capacitance signal in real time according to the surrounding environment and transmit the capacitance signal to the MCU processor 110 for processing.

[0022] Under normal circumstances, the first sensing electrode 131 and the second sensing electrode 132 operate normally with low power consumption. During operation, the first sensing electrode 131 or the second sensing electrode 132 senses in real time whether a hand touches the car door handle; if so, it triggers the formation of a corresponding signal and transmits it to the MCU processor 110. After receiving the capacitor signal, the MCU processor 110 processes the capacitor signal. When the capacitor signal reaches the set threshold, it outputs a start signal to the motor execution chip 200. The motor execution chip 200 directly controls the start and stop of the handle motor 300 to realize the folding / unfolding of the car door handle. This avoids long-distance signal transmission, eliminates the need for additional wiring harnesses, integrates functions into a single module, resulting in lower costs, faster response times, and a better user experience.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A handle actuator integrating capacitance acquisition and motor drive, characterized in that, It includes an integrated capacitive sensor and a motor actuator chip. The motor actuator chip is configured to connect to the handle motor of the car door handle and control the start and stop of the handle motor. The capacitive sensor is configured to detect the capacitance signal. When the capacitance signal exceeds a threshold, the capacitive sensor outputs a signal to the motor drive chip, and the motor actuator chip controls the handle motor to drive the folding / unfolding handle.

2. The handle actuator integrating capacitance acquisition and motor drive according to claim 1, characterized in that, The capacitance sensor includes a circuit board and an SBC module, an MCU processor, and a capacitance sensing electrode assembly integrated on the circuit board. The SBC module is connected to an external power supply and provides operating power to the MCU processor. The capacitance sensing electrode assembly is connected to the MCU processor and is configured to collect capacitance signals and transmit the capacitance signals to the MCU processor for processing.

3. The handle actuator integrating capacitance acquisition and motor drive according to claim 2, characterized in that, The motor actuator chip is integrated on the circuit board and is connected to the MCU processor and the handle motor respectively. It is configured to receive control signals from the MCU to control the start and stop of the handle motor.

4. The handle actuator integrating capacitance acquisition and motor drive according to claim 2, characterized in that, The capacitive sensing electrode assembly includes a first sensing electrode and a second sensing electrode. The first and second sensing electrodes are respectively connected to the MCU processor and are configured to generate a capacitance signal in real time according to the surrounding environment and transmit the capacitance signal to the MCU processor for processing.

5. A vehicle, characterized in that, The vehicle includes a handle actuator with integrated capacitance acquisition and motor drive as described in any one of claims 1-4.

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