A method and device for preventing false stepping and collision of vehicle electronic throttle

Abstract

This invention discloses a method and device for preventing accidental pressing and collisions of the vehicle's electronic throttle, comprising: acquiring the vehicle's current driving speed and accelerator pedal depressing rate; when the current driving speed is lower than a first speed threshold and the depressing rate exceeds a preset rate threshold, performing an anti-acceleration operation, including switching the electronic throttle output signal to an idle signal and issuing a voice warning; and further, combining radar detection of the distance and movement status of obstacles ahead, directly triggering the anti-acceleration operation when approaching an obstacle and the accelerator is pressed. The device includes a vehicle driving speed acquisition module, a throttle signal acquisition module, a central fusion processing module, an electronic throttle signal switching module, and a voice module, which can implement the above method. This invention is independent of the original vehicle system, can accurately identify accidental pressing behavior and actively intervene, effectively avoiding collisions caused by pressing the accelerator instead of the brake, and is applicable to various types of vehicles with electronic throttles.

Description

Technical Field

[0001] This invention relates to the field of vehicle driver assistance technology, specifically to a method and device for preventing accidental pressing and collisions of the vehicle's electronic throttle. Background Technology

[0002] The vehicle's electronic throttle system uses electronic sensors to collect pedal position signals, and the engine control unit (ECU) adjusts the throttle opening to achieve acceleration control. Compared to traditional mechanical cable-operated throttles, electronic throttles have advantages such as precise response and ease of integration with auxiliary control functions, and are now widely used in various passenger cars and commercial vehicles.

[0003] However, in actual driving, many inexperienced drivers, when nervous, distracted, or needing to brake suddenly, are prone to mistaking the accelerator pedal for the brake pedal and slamming on it. This mistake can cause the vehicle to accelerate unexpectedly, leading to serious rear-end collisions, crashes, and other traffic accidents, resulting in personal injury and property damage.

[0004] To address the aforementioned issues, existing technologies have proposed some auxiliary solutions, but most of them only achieve simple signal delay or speed limiting functions, lacking the ability to accurately identify accidental pedal use. This makes them prone to false triggering during normal, aggressive driving, or missed triggering in low-speed following or reversing scenarios. Furthermore, existing devices generally do not combine vehicle speed with the distance to obstacles ahead for comprehensive judgment, making it difficult to proactively intervene when the risk of collision increases.

[0005] Therefore, there is an urgent need for a device and method that does not rely on the original vehicle's advanced driver assistance system, can be independently installed in various electronic throttle vehicles, and can accurately identify the driver's mistaken pressing of the accelerator and effectively prevent collisions. This is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In view of the above problems, the present invention is proposed to provide a method and apparatus for preventing accidental pressing and collision of vehicle electronic throttle, which overcomes or at least partially solves the above problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] In a first aspect, embodiments of the present invention provide a method for preventing accidental pressing and collision of a vehicle's electronic throttle, comprising the following steps: Get the vehicle's current speed; Get the accelerator pedal depressing rate; When the current driving speed is lower than the first speed threshold, it is determined whether the pedaling rate exceeds the preset rate threshold; if it does, an anti-accidental pedaling operation is performed, which includes: switching the output signal of the electronic throttle to an idle signal and issuing a voice warning.

[0009] Preferably, the anti-accidental pedal operation further includes: after switching the output signal of the electronic throttle to the idle signal, maintaining the idle signal output for a preset delay time.

[0010] Preferably, it further includes: when the current driving speed is higher than the first speed threshold, determining whether the pedaling rate exceeds a preset speed threshold; if it does, then first executing a voice warning for a preset duration, and then switching the output signal of the electronic throttle to an idle signal.

[0011] Preferably, the step of determining whether the pedaling speed exceeds a preset speed threshold includes: Detect the voltage value of the electronic throttle and calculate the rate of voltage change during the process of the voltage rising from the idle voltage to the full stroke voltage; When the voltage change rate exceeds a preset change rate threshold, it is determined that the pedaling rate exceeds the preset rate threshold.

[0012] Preferably, the step of the voltage change rate exceeding the preset change rate threshold includes: within any continuous voltage rise interval, the time required for each unit voltage rise is less than a first time threshold; or, within any continuous voltage rise interval, the total rise time is less than a second time threshold.

[0013] Preferred options also include: Obtain information on the relative position of obstacles in front of the vehicle, including the distance to the obstacles and their relative motion status; When the current driving speed is lower than the first speed threshold, the distance to the obstacle is less than the preset distance threshold, and the relative motion state is close, if the accelerator pedal action is detected, the anti-accidental pedal operation is executed directly.

[0014] In a second aspect, embodiments of the present invention provide a vehicle electronic throttle anti-accidental pressing and anti-collision device, used to implement the vehicle electronic throttle anti-accidental pressing and anti-collision method described in the first aspect, including: The vehicle speed acquisition module is used to acquire the current speed of the vehicle. The throttle signal acquisition module is used to acquire the voltage signal of the electronic throttle and calculate the pedaling rate; The central fusion processing module is connected to the vehicle speed acquisition module and the throttle signal acquisition module respectively. It is used to determine whether the pedaling rate exceeds the preset rate threshold when the current driving speed is lower than the first speed threshold, and to issue an anti-accidental pedaling command when it exceeds the threshold. An electronic throttle signal switching module is connected to the central processing module and is connected in series between the electronic throttle pedal and the vehicle's main controller. It is used to switch the output signal of the electronic throttle to an idle signal after receiving the anti-misoperation command. The voice module, connected to the central fusion processing module, is used to issue a voice warning after receiving the anti-accidental step command.

[0015] Preferably, the vehicle speed acquisition module includes a GPS unit and / or an interface connected to the vehicle's CAN bus, used to acquire GPS speed and / or the vehicle's own speed; the central processing module compares the reliability of the two acquired speeds and selects the speed with higher reliability as the current driving speed.

[0016] Preferably, it also includes a radar ranging module connected to the central processing module, used to detect the distance and relative motion state of obstacles in front of the vehicle; the central processing module is also used to: when the current driving speed is lower than a first speed threshold, the distance to the obstacle is less than a preset distance threshold and the relative motion state is an approach state, if an accelerator pedal action is detected, directly execute the anti-accidental pedal operation.

[0017] Preferably, the electronic throttle signal switching module includes a normally closed switch. In the default closed state, the electronic throttle signal switching module does not operate, and the electronic throttle signal is directly transmitted to the vehicle's main controller. When the anti-accidental pedal command is received, the electronic throttle signal switching module operates, the normally closed switch opens, and a preset idle speed voltage signal is directly connected to the vehicle's main controller.

[0018] Preferably, it also includes an external touch switch for receiving the user's touch control command and transmitting it to the central processing module, causing the central processing module to start timing for a preset duration; and controlling the normally closed switch to remain open within the preset duration, so that the electronic throttle signal is directly transmitted to the vehicle's main controller.

[0019] The specific beneficial effects of the above-mentioned technical solutions provided in the embodiments of the present invention include at least the following: 1. This invention does not rely on the original vehicle's advanced driver assistance systems such as AEB and ESP, and can be independently installed on various electronic throttle models (without requiring software modification to the original vehicle's computer).

[0020] 2. By combining the voltage change rate threshold with the vehicle speed threshold for dual judgment, it can effectively distinguish between emergency accidental pressing and normal aggressive driving, avoiding the problem of frequent false triggering in existing products.

[0021] 3. By detecting the distance and movement of obstacles ahead using radar, it can proactively intervene when the risk of a rear-end collision increases. Even if the driver is not accelerating at a high speed, it can still trigger protection and effectively deal with collisions caused by distracted driving.

[0022] 4. The electronic throttle signal switching module adopts a normally closed design, and is directly connected to the original vehicle ECU by default. Even if the device is powered off or malfunctions, it will not affect the original vehicle throttle function at all, ensuring driving safety.

[0023] 5. Temporary exemptions can be achieved through an external touch switch, meeting the needs of scenarios requiring high throttle operation, such as wading through water, mud, and starting on steep slopes.

[0024] 6. With dual-channel vehicle speed input via GPS and CAN bus and arbitration logic, the device can still function normally even if one signal fails. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A schematic diagram of the vehicle electronic throttle anti-accidental pressing and anti-collision method provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the vehicle electronic throttle anti-accidental pressing and anti-collision device provided in an embodiment of the present invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention discloses a method for preventing accidental pressing and collisions of the vehicle's electronic throttle, the process of which is as follows: Figure 1 As shown, the execution steps of the embodiment are described in detail below: Get the vehicle's current speed; Get the accelerator pedal depressing rate; When the current driving speed is lower than the first speed threshold, it is determined whether the pedaling rate exceeds the preset rate threshold; if it does, an anti-accidental pedaling operation is performed, which includes: switching the electronic throttle output signal to an idle signal and issuing a voice warning.

[0029] In practice, when the vehicle speed is detected to be below 60 km / h and an anti-accidental pedal operation is performed, the output switching switch signal mode is activated, a voice prompt is issued and maintained for a preset duration, and then the electronic throttle output signal is switched to the idle speed signal and a voice prompt is issued.

[0030] In one embodiment, the anti-accidental pedal operation further includes: after switching the output signal of the electronic throttle to the idle signal, maintaining the idle signal output for a preset delay time.

[0031] In one embodiment, the method further includes: when the current driving speed is higher than a first speed threshold, determining whether the pedaling rate exceeds a preset speed threshold; if it does, first executing a voice warning for a preset duration, and then switching the electronic throttle output signal to an idle signal. In specific execution, if the vehicle speed is detected to be above 60 km / h, the signal output of the switching switch is not activated, and only the voice prompt is activated.

[0032] It is understandable that the anti-accidental pressing function of the vehicle's electronic throttle is activated when the vehicle speed is below 60 km / h, and not activated when the speed is above 60 km / h, in order to prevent the vehicle from interfering with the driver's normal driving at high speeds.

[0033] In one embodiment, the step of determining whether the pedaling rate exceeds a preset rate threshold includes: Detect the voltage value of the electronic throttle and calculate the rate of voltage change during the process of the voltage rising from the idle voltage to the full stroke voltage; When the voltage change rate exceeds the preset change rate threshold, it is determined that the pedaling rate exceeds the preset rate threshold.

[0034] In practice, when the electronic throttle is pressed, the rise time of the electronic throttle voltage from the idle speed voltage to the electronic throttle voltage at high vehicle speed is obtained. After processing, a voice signal is obtained and transmitted to the voice module, and a switch signal is executed to switch the output signal of the electronic throttle to the idle speed signal.

[0035] In one embodiment, the step of the voltage change rate exceeding a preset change rate threshold includes: within any continuous voltage rise interval, the time required for each unit voltage rise is less than a first time threshold; or, within any continuous voltage rise interval, the total rise time is less than a second time threshold.

[0036] In this embodiment, the voltage of the electronic throttle is continuously detected when the vehicle speed is below 60 km / h. The rise time of the electronic throttle voltage from the idle voltage of 0.7V to the voltage of 4.8V at the maximum speed is detected. The idle voltage and the voltage at the maximum speed are determined by the vehicle model, and the voltage rise time detection is divided into 4 steps.

[0037] The first step: If the time taken to rise from the idle voltage of 0.7V to 1.725V is less than 125ms, switch the electronic throttle signal to the idle voltage state, maintain the idle voltage state for 10 seconds, and issue a warning sound.

[0038] The system detected that the time taken for the first step voltage to rise from 0.7V to 1.725V was greater than 125ms, and the electronic throttle signal remained directly connected to the vehicle's main control system.

[0039] The second step: If the time taken to rise from the idle voltage of 1.725V to 2.75V is less than 125ms, switch the electronic throttle signal to the idle voltage state, maintain the idle voltage state for 10 seconds, and issue a warning sound.

[0040] The system detected that the time taken for the second step voltage to rise from 1.725V to 2.75V was greater than 125ms, and the electronic throttle signal remained directly connected to the vehicle's main control system.

[0041] The third step: If the time taken to rise from the idle voltage of 2.75V to 3.775V is less than 125ms, switch the electronic throttle signal to the idle voltage state, maintain the idle voltage state for 10 seconds, and issue a warning sound.

[0042] The system detected that the time taken for the third step, from the idle voltage of 2.75V to 3.775V, was longer than 125ms, and the electronic throttle signal remained directly connected to the vehicle's main control system.

[0043] The fourth step: If the time taken to rise from the idle voltage of 3.775V to 4.8V is less than 125ms, switch the electronic throttle signal to the idle voltage state, maintain the idle voltage state for 10 seconds, and issue a warning sound.

[0044] The system detected that the time taken for the fourth step voltage to rise from 3.775V to 4.8V was greater than 125ms, and the electronic throttle signal remained directly connected to the vehicle's main control system.

[0045] In this embodiment, in addition to the above four-step detection process, it is also possible to determine whether the voltage rise is below 1.22ms by detecting the average voltage rise of 10mV. If so, the electronic throttle signal is switched to the idle voltage state, the idle voltage state is maintained for 10 seconds, and a prompt sound is issued.

[0046] In one embodiment, it also includes: Obtain information on the relative position of obstacles in front of the vehicle, including the distance to the obstacles and their relative motion status; When the current driving speed is below the first speed threshold, the distance to the obstacle is less than the preset distance threshold, and the relative motion state is close, if an accelerator pedal press is detected, the anti-accidental pedal press operation will be executed directly. It should be noted that the sequence of executing the anti-accidental pedal press operation is as follows: first, a voice warning is issued, and then the electronic throttle output signal is switched to an idle speed signal.

[0047] In practice, the distance to objects in front of the vehicle is detected and compared with the vehicle's baseline speed. Specifically, When a stationary object is detected in front of the vehicle, the system bypasses the setting that the switching switch will not be activated when the vehicle speed exceeds 60 km / h, directly issues a voice prompt, and then switches the electronic throttle signal to the idle speed voltage state and issues another voice prompt.

[0048] When the vehicle is rapidly approaching an object less than 50 meters away and the accelerator is pressed, if the average voltage rise of 10mV is less than 1.22ms, a warning sound will be emitted for several seconds. Then, the electronic throttle signal will be switched to the idle voltage state, maintained in the idle voltage state for 10 seconds, and a warning sound will be emitted.

[0049] Based on the same inventive concept, this invention also provides a vehicle electronic throttle anti-collision device according to a vehicle electronic throttle anti-accidental-application and anti-collision method. The technical features of the device are also applicable to the execution steps of the vehicle electronic throttle anti-accidental-application and anti-collision method. The device is installed in series between the vehicle electronic throttle pedal and the vehicle engine control unit (ECU). The device includes: The vehicle speed acquisition module is used to acquire the current speed of the vehicle. The throttle signal acquisition module is used to acquire the voltage signal of the electronic throttle and calculate the pedaling rate; The central fusion processing module is connected to the vehicle speed acquisition module and the throttle signal acquisition module respectively. It is used to determine whether the pedaling rate exceeds the preset rate threshold when the current driving speed is lower than the first speed threshold, and to issue an anti-accidental pedaling command when it exceeds the threshold. The electronic throttle signal switching module is connected to the central processing module and is connected in series between the electronic throttle pedal and the vehicle's main controller. It is used to switch the output signal of the electronic throttle to the idle speed signal after receiving the anti-misoperation command. The voice module, connected to the central fusion processing module, is used to issue voice warnings after receiving anti-accidental step commands.

[0050] The working process of the vehicle electronic throttle anti-accidental pressing and anti-collision device provided by the present invention will be described in detail below with reference to the above-mentioned device.

[0051] Step 1: Obtain the vehicle's current speed.

[0052] The central fusion processing module acquires the vehicle's current speed in real time through the vehicle speed acquisition module. Specifically, the vehicle speed acquisition module simultaneously obtains speed signals from both the GPS unit and the CAN bus interface. The central fusion processing module has a built-in speed arbitration unit that compares the reliability of the two speeds: by default, the vehicle's own speed is given priority; if the vehicle's own speed signal is abnormal, it switches to the GPS speed; if both signals are abnormal, the current speed is assumed to be below a first speed threshold. This redundancy design ensures the reliability of the speed input.

[0053] Step 2: Obtain the accelerator pedal depressing rate.

[0054] The throttle signal acquisition module collects the voltage value of the electronic throttle pedal in real time and converts the analog voltage into a digital quantity, which is then sent to the central fusion processing module. The central fusion processing module calculates the voltage change rate based on the continuously sampled voltage values ​​and the sampling time interval; this change rate is used as the pedaling speed.

[0055] Step 3: Speed ​​comparison and judgment of anti-accidental stepping conditions.

[0056] The central fusion processing module compares the current driving speed with the first speed threshold stored internally. In this embodiment, the first speed threshold is set to 60 km / h.

[0057] If the current driving speed is lower than the first speed threshold, then it is further determined whether the pedaling rate exceeds the preset rate threshold.

[0058] If the current driving speed is higher than or equal to the first speed threshold, determine whether the pedaling rate exceeds the preset rate threshold; if it does, the device will not intervene in the throttle signal switching, or will only issue a voice reminder first, and then intervene in the throttle signal switching.

[0059] In this embodiment, the following method is used to determine whether the pedaling speed exceeds the threshold: The system detects the voltage value of the electronic throttle and calculates the rate of voltage change as the voltage rises from idle voltage to full-stroke voltage. When the rate of voltage change exceeds a threshold, the pedaling speed is determined to exceed a preset threshold.

[0060] In practice, detection can be performed in two equivalent ways: Method 1, Stepped Detection Method: Divide the entire voltage rise into four consecutive sub-intervals: 0.7V→1.725V, 1.725V→2.75V, 2.75V→3.775V, 3.775V→4.8V. Detect the rise time of each sub-interval. If the rise time of any sub-interval is less than 125 milliseconds, the voltage change rate is determined to exceed the threshold.

[0061] Method 2, Continuous detection method: Continuously calculate the time required for each 10mV voltage increase. If the time is less than 1.22ms, the voltage change rate is determined to exceed the threshold.

[0062] Both methods are physically equivalent and can accurately identify accidental acceleration by the driver.

[0063] Step 4: Perform the anti-accidental stepping operation.

[0064] When the current driving speed is lower than a first speed threshold and the pedaling rate exceeds a preset rate threshold, the central fusion processing module immediately executes an anti-accidental pedaling operation. This operation includes: Operation 21: Issue a voice warning: The central fusion processing module simultaneously sends a voice trigger signal to the voice module. Upon receiving the trigger signal, the voice module issues a pre-recorded warning voice message. The voice warning can be played once or looped throughout the entire anti-accidental pedal operation to remind the driver to correct the operation.

[0065] Operation 1. Switching the electronic throttle output signal to an idle signal: The central fusion processing module sends an anti-accidental acceleration command to the electronic throttle signal switching module. The electronic throttle signal switching module has a normally closed switch inside. By default, this switch directly connects the accelerator pedal signal line to the vehicle's main controller. Upon receiving the command, the normally closed switch opens, and a preset idle voltage is connected to the vehicle's main controller. At this time, regardless of how the driver presses the accelerator pedal, the vehicle's main controller always receives the idle voltage signal, and the vehicle will not accelerate, thus avoiding unexpected acceleration collisions caused by accidental accelerator pedal press.

[0066] Preferably, the anti-accidental throttle operation also includes: after switching the electronic throttle output signal to an idle signal, maintaining the idle signal output for a preset delay time. The central fusion processing module has an internal timer unit that starts timing simultaneously with the output of the anti-accidental throttle command, with a preset delay time of 10 seconds. During these 10 seconds, the anti-accidental throttle command remains valid, and the switching module maintains the idle signal output; after 10 seconds, the central fusion processing module stops outputting commands, the switching module automatically returns to its normally closed state, and the electronic throttle signal is directly transmitted back to the vehicle's main controller, resuming normal driving.

[0067] In one embodiment, a high-precision voltage sampling circuit is included, connected in parallel with the signal output line of the electronic throttle pedal, to acquire the voltage value of the electronic throttle pedal in real time.

[0068] In one embodiment, the central fusion processing module uses a microcontroller as the core processing unit and integrates a comparator, timer, instruction output unit, speed arbitration unit, etc.

[0069] In one embodiment, the vehicle speed acquisition module includes a GPS unit and / or an interface connected to the vehicle's CAN bus, for acquiring GPS vehicle speed and / or the vehicle's own speed; the central processing module compares the reliability of the two acquired speeds and selects the speed with higher reliability as the current driving speed.

[0070] In practice, the GPS unit receives satellite signals and parses NMEA statements to extract GPS movement speed; the CAN bus interface is connected to the vehicle's OBD interface or CAN network to read the vehicle speed signal collected by the vehicle's own speed sensor.

[0071] In one embodiment, such as Figure 2 As shown, it also includes a radar ranging module connected to the central processing module, used to detect the distance and relative motion of obstacles in front of the vehicle. In this embodiment, the radar ranging module can detect obstacles within a range of 0 to 100 meters in front of the vehicle in real time, and the output data includes the obstacle distance and relative motion state. The central processing module is also used to: when the current driving speed is lower than a first speed threshold, the obstacle distance is less than a preset distance threshold, and the relative motion state is approaching, if an accelerator pedal action is detected, directly execute an anti-accidental pedal operation. The central processing unit is also used to: when the radar detects that the object in front of the vehicle is stationary, directly output a signal to the throttle signal switching module to switch the electronic throttle signal to the idle voltage state and send a signal to the voice module to issue a voice prompt.

[0072] In one embodiment, the electronic throttle signal switching module is connected in series between the electronic throttle pedal and the vehicle's main controller, and includes a normally closed switch. In the default closed state, the electronic throttle signal switching module does not operate, and the normally closed switch directly transmits the electronic throttle signal to the vehicle's main controller. When an anti-accidental pedaling command is received, the electronic throttle signal switching module activates, the normally closed switch opens, and a preset idle speed voltage signal is directly connected to the vehicle's main controller.

[0073] In one embodiment, an external touch switch is also included, which is used to receive the user's touch control command and transmit it to the central processing module, so that the central processing module starts timing for a preset duration; and controls the normally closed switch to remain open within the preset duration, so that the electronic throttle signal is transmitted to the vehicle's main controller.

[0074] In practice, when the driver presses the touch switch once, the exemption command input terminal of the central fusion processing module detects a trigger pulse signal. The central fusion processing module then starts timing for a preset duration, which is 10 minutes in this embodiment, and performs the following controls within that preset duration: The normally closed switch of the electronic throttle signal switching module is kept open, so that the electronic throttle signal is directly transmitted to the vehicle's main controller, i.e., no idle signal switching is performed; in other words, the device prohibits the anti-accidental pressing operation of switching the electronic throttle output signal to the idle signal for the entire preset time period, but the voice module can still issue prompts normally.

[0075] When the preset time expires, the device automatically resumes its normal anti-accidental stepping function.

[0076] With this external touch switch function, the driver can temporarily close the anti-accidental pedal intervention in special road conditions that require continuous high throttle output, so as to avoid the device being accidentally triggered and affecting normal driving.

[0077] In one embodiment, the device includes a main power switch connected in series between the vehicle battery and each module of the device. When the vehicle is started, the driver needs to manually turn on the main power switch for the device to power on and operate. When the main power switch is off, the entire device is inactive, the electronic throttle signal switching module is normally closed, and the electronic throttle signal is directly transmitted to the vehicle ECU, without affecting the original vehicle driving functions.

[0078] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0079] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preventing accidental pressing and collision of the electronic throttle in a vehicle, characterized in that, Includes the following steps: Get the vehicle's current speed; Get the accelerator pedal depressing rate; When the current driving speed is lower than the first speed threshold, it is determined whether the pedaling rate exceeds the preset rate threshold. If the limit is exceeded, an anti-accidental pedal operation is performed, which includes switching the output signal of the electronic throttle to an idle signal and issuing a voice warning.

2. The vehicle electronic accelerator anti-pedaling and anti-collision method according to claim 1, characterized in that, The anti-accidental pedal operation also includes: after switching the output signal of the electronic throttle to the idle signal, maintaining the idle signal output for a preset delay time.

3. The vehicle electronic accelerator anti-pedaling and anti-collision method according to claim 1, characterized in that, Also includes: When the current driving speed is higher than the first speed threshold, it is determined whether the pedaling rate exceeds the preset rate threshold. If the time limit is exceeded, the voice warning will be executed for the preset duration first, and then the output signal of the electronic throttle will be switched to the idle signal.

4. The method for preventing false acceleration and collision of vehicle electronic accelerator as claimed in claim 1 wherein, The step of determining whether the stamping rate exceeds a preset rate threshold includes: Detect the voltage value of the electronic throttle and calculate the rate of voltage change as the voltage rises from the idle voltage to the full-stroke voltage; When the voltage change rate exceeds a preset change rate threshold, it is determined that the pedaling rate exceeds the preset rate threshold.

5. The vehicle electronic accelerator anti-pedaling and anti-collision method according to claim 4, characterized in that, The step of the voltage change rate exceeding the preset change rate threshold includes: within any continuous voltage rise interval, the time required for each unit voltage rise is less than a first time threshold; or, within any continuous voltage rise interval, the total rise time is less than a second time threshold.

6. The vehicle electronic accelerator anti-pedaling and anti-collision method according to claim 1, characterized in that, Also includes: Obtain information on the relative position of obstacles in front of the vehicle, including the distance to the obstacles and their relative motion status; When the current driving speed is lower than the first speed threshold, the distance to the obstacle is less than the preset distance threshold, and the relative motion state is close, if the accelerator pedal action is detected, the anti-accidental pedal operation is executed directly.

7. A vehicle electronic throttle anti-accidental pressing and anti-collision device, used to implement the vehicle electronic throttle anti-accidental pressing and anti-collision method as described in any one of claims 1 to 9, characterized in that, include: The vehicle speed acquisition module is used to acquire the current speed of the vehicle. The throttle signal acquisition module is used to acquire the voltage signal of the electronic throttle and calculate the pedaling rate; The central fusion processing module is connected to the vehicle speed acquisition module and the throttle signal acquisition module respectively. It is used to determine whether the pedaling rate exceeds the preset rate threshold when the current driving speed is lower than the first speed threshold, and to issue an anti-accidental pedaling command when it exceeds the threshold. An electronic throttle signal switching module is connected to the central processing module and is connected in series between the electronic throttle pedal and the vehicle's main controller. It is used to switch the output signal of the electronic throttle to an idle signal after receiving the anti-misoperation command. The voice module, connected to the central fusion processing module, is used to issue a voice warning after receiving the anti-accidental step command.

8. The vehicle electronic throttle anti-accidental pressing and anti-collision device as described in claim 7, characterized in that, It also includes a radar ranging module connected to the central processing module, used to detect the distance and relative motion state of obstacles in front of the vehicle; the central processing module is also used to: when the current driving speed is lower than a first speed threshold, the distance to the obstacle is less than a preset distance threshold and the relative motion state is approaching, if an accelerator pedal action is detected, directly execute the anti-accidental pedal operation.

9. The vehicle electronic throttle anti-accidental pressing and anti-collision device as described in claim 7, characterized in that, The electronic throttle signal switching module includes a normally closed switch. In the default closed state, the electronic throttle signal switching module does not operate, and the electronic throttle signal is directly transmitted to the vehicle's main controller. When the anti-accidental pedal command is received, the electronic throttle signal switching module operates, the normally closed switch opens, and a preset idle speed voltage signal is directly connected to the vehicle's main controller.

10. The vehicle electronic throttle anti-accidental-application and anti-collision device as described in claim 7, characterized in that, It also includes an external touch switch, used to receive the user's touch control command and transmit it to the central processing module, so that the central processing module starts timing for a preset duration; and within the preset duration, controls the normally closed switch to remain open, so that the electronic throttle signal is directly transmitted to the vehicle's main controller.

Images