Low-speed alarm for new energy automobile driving

Abstract

The utility model discloses a low-speed alarm for new energy automobile driving, the low-speed alarm comprises an AVAS controller, a VCU automobile controller and a CAN communication line, the AVAS controller is in telecommunication connection with the VCU automobile controller through the CAN communication line, the AVAS controller obtains automobile running state information through the VCU automobile controller, and the vehicle running state information is sent to the VCU automobile controller through the CAN communication line. The low-speed alarm further comprises a camera, a vehicle-mounted radar, a noise detection module and a loudspeaker, the input end of the AVAS controller is in telecommunication connection with the camera, the noise detection module and the vehicle-mounted radar, and the output end of the AVAS controller is electrically connected with the loudspeaker. According to the low-speed alarm, the AVAS controller is electrically connected with the VCU automobile controller through the CAN communication line, so that the AVAS controller can receive automobile speed signals of an automobile, the loudspeaker is controlled to make sounds so as to remind surrounding pedestrians or vehicles, driving risks are reduced, a driver does not need to press the loudspeaker manually, the automation degree of alarm prompting is improved, and the safety of the automobile is improved. And the occurrence of traffic accidents can be well prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a low-speed alarm for driving new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] Since existing new energy vehicles are mainly powered by electricity, they are very quiet when running. For pedestrians with limited mobility and poor hearing, it is not easy to attract attention, which poses a safety hazard. In order to avoid safety hazards during the driving of new energy vehicles, existing automobile manufacturers will install reminder devices on new energy vehicles when designing new energy vehicles, such as horn devices. During the driving process, if the car needs to interact with pedestrians or vehicles outside the car, the driver in the car can interact with pedestrians or vehicles outside the car by pressing the horn. Although the existing reminder devices can achieve a certain driving reminder effect, the existing reminder devices still have the following shortcomings:

[0004] 1) Existing reminder devices mainly rely on manual operation to remind surrounding people and vehicles. Sometimes the driver reacts a little slowly and fails to press the horn in time, which can easily lead to traffic accidents.

[0005] 2) Existing reminder devices mainly rely on manual operation to remind surrounding people and vehicles, which is not proactive and intelligent enough. Utility Model Content

[0006] In view of the deficiencies in the prior art, the technical problem solved by the utility model is to provide a low-speed alarm which utilizes an AVAS controller to be electrically connected to a VCU vehicle controller via a CAN communication line, so that the AVAS controller can receive the vehicle speed signal, thereby controlling the speaker to make a sound, thereby alerting pedestrians or vehicles around, reducing driving risks, eliminating the need for the driver to manually press the horn, improving the degree of automation of the alarm prompt, and being able to better prevent the occurrence of traffic accidents. It has a high practical value.

[0007] In order to solve the above technical problems, the utility model provides a low-speed alarm for driving new energy vehicles, the low-speed alarm comprising an AVAS controller, a VCU vehicle controller, and a CAN communication line, the AVAS controller and the VCU vehicle controller being connected via the CAN communication line, the low-speed alarm also comprising a camera, an on-board radar, a noise detection module, and a speaker, the input end of the AVAS controller being respectively connected to the camera, the noise detection module, and the on-board radar, and the output end of the AVAS controller being electrically connected to the speaker.

[0008] Furthermore, the AVAS controller includes a communication module, a signal processing module, an MCU main control module, a storage module, a power module, and an audio driver module. The communication module is electrically connected to the communication interface of the MCU main control module, the power module is electrically connected to the power interface of the MCU main control module, the output end of the signal processing module is electrically connected to the input end of the MCU main control module, and the storage module and the audio driver module are respectively electrically connected to the output end of the MCU main control module.

[0009] Furthermore, the audio driving module is electrically connected to the speaker, and the MCU main control module of the AVAS controller is electrically connected to the speaker through the audio driving module.

[0010] Furthermore, the low-speed alarm includes a radar signal preprocessing module, an input end of the radar signal preprocessing module is electrically connected to the vehicle-mounted radar, an output end of the radar signal preprocessing module is electrically connected to an input end of a signal processing module of an AVAS controller, and the vehicle-mounted radar is electrically connected to the signal processing module via the radar signal preprocessing module.

[0011] Furthermore, the low-speed alarm includes a camera signal preprocessing module, the input end of the camera signal preprocessing module is electrically connected to the camera, the output end of the camera signal preprocessing module is electrically connected to the input end of the signal processing module of the AVAS controller, and the camera is telecommunication-connected to the signal processing module via the camera signal preprocessing module.

[0012] Further, the MCU main control module includes an MCU main control chip U1, a resistor R15, and a resistor R16. The model of the MCU main control chip U1 is APM32F072XBT7. The 44th pin of the MCU main control chip U1 is electrically connected to the resistor R15 and the resistor R16.

[0013] The storage module includes a memory U3, a resistor R28, and a capacitor C36. The model of the memory U3 is MX25R3235FM2IH0. The 7th pin of the memory U3 is electrically connected to the resistor R28, the 8th pin of the memory U3 is electrically connected to the capacitor C36, and the 25th pin, the 26th pin, the 27th pin, and the 28th pin of the MCU main control chip U1 are electrically connected to the 1st pin, the 6th pin, the 2nd pin, and the 5th pin of the memory U3, respectively.

[0014] Furthermore, the audio driving module includes an audio power amplifier chip U6, a resistor R39, and a capacitor C57. The model of the audio power amplifier chip U6 is SA51510. The second pin of the audio power amplifier chip U6 is electrically connected to the resistor R39, the third pin of the audio power amplifier chip U6 is electrically connected to the capacitor C57, the sixth pin, the seventh pin, and the eighth pin of the audio power amplifier chip U6 are respectively electrically connected to the fourteenth pin, the fifteenth pin, and the sixteenth pin of the MCU main control chip U1 of the MCU main control module, and the thirteenth pin and the tenth pin of the audio power amplifier chip U6 are respectively electrically connected to the speaker.

[0015] Furthermore, the input end of the VCU automobile controller is electrically connected to a power switch, an accelerator pedal, a brake pedal, a gear switch, and a vehicle speed sensor, and the VCU automobile controller can collect and receive information sent by the power switch, the accelerator pedal, the brake pedal, the gear switch, and the vehicle speed sensor.

[0016] Furthermore, the noise detection module is a microphone, and the AVAS controller is electrically connected to the noise detection module through an input end of the signal processing module.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The low-speed alarm of the utility model includes an AVAS controller, a VCU vehicle controller, and a CAN communication line. The AVAS controller is connected to the VCU vehicle controller by telecommunication through the CAN communication line. The AVAS controller obtains the vehicle operation status information through the VCU vehicle controller. The low-speed alarm also includes a camera, a vehicle-mounted radar, a noise detection module, and a speaker. The input end of the AVAS controller is respectively connected to the camera, the noise detection module, and the vehicle-mounted radar by telecommunication, and the output end of the AVAS controller is electrically connected to the speaker. The low-speed alarm of the utility model utilizes the AVAS controller to be electrically connected to the VCU vehicle controller through the CAN communication line, so that the AVAS controller can receive the vehicle speed signal, thereby controlling the speaker to emit a sound to remind the surrounding pedestrians or vehicles, reducing the driving risk, without the driver manually pressing the horn, improving the automation of the alarm prompt, and can better prevent the occurrence of traffic accidents, with high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the signal flow diagram of the low-speed alarm in the utility model;

[0020] Figure 2 It is the signal flow diagram of each module of the AVAS controller of the utility model;

[0021] Figure 3 This is the circuit schematic diagram of the MCU main control module of the utility model;

[0022] Figure 4 This is a circuit schematic diagram of the audio driver module of the utility model;

[0023] Figure 5 This is a circuit schematic diagram of the storage module of the utility model;

[0024] Figure 6 This is a circuit schematic diagram of the CAN communication line and communication module of the utility model;

[0025] Figure 7 This is a circuit schematic diagram of the power module of the utility model.

[0026] In the figure, there are AVAS controller 1, VCU vehicle controller 2, CAN communication line 3, camera 4, vehicle-mounted radar 5, noise detection module 6, speaker 7, radar signal preprocessing module 8, and camera signal preprocessing module 9. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-7As shown, Embodiment 1 of the utility model provides a low-speed alarm for driving a new energy vehicle, the low-speed alarm comprising an AVAS controller 1, a VCU vehicle controller 2, and a CAN communication line 3. The AVAS controller 1 is connected to the VCU vehicle controller 2 via the CAN communication line 3, and the AVAS controller 1 obtains vehicle operation status information via the VCU vehicle controller 2; the low-speed alarm further comprises a camera 4, an on-board radar 5, a noise detection module 6, and a speaker 7. The input end of the AVAS controller 1 is respectively connected to the camera 4, the noise detection module 6, and the on-board radar 5, and the output end of the AVAS controller 1 is electrically connected to the speaker 7. The VCU car controller 2 of the utility model transmits signals with the AVAS controller 1 through the CAN communication line 3, so that the AVAS controller 1 can obtain the speed signal and throttle signal of the car from the VCU car controller 2, so as to determine the volume of the speaker 7 driven by the AVAS controller 1. The AVAS controller 1 can obtain the surrounding conditions of the vehicle through the camera 4 and the vehicle-mounted radar 5, so as to determine whether there are pedestrians in the surrounding area. The AVAS controller 1 obtains the signal from the vehicle-mounted radar 5 and the camera 4, which is convenient for determining whether there are pedestrians in the surrounding area. If there are no pedestrians, the AVAS controller 1 does not control the speaker 7 to ring at low speed, thereby saving energy consumption. When there are pedestrians or other vehicles within a set distance around the vehicle, the AVAS controller 1 obtains the noise signal through the noise detection module 6 when the vehicle is driving at a low speed, and the AVAS controller 1 controls the power output of the speaker 7 according to the noise signal. The larger the noise signal detected by the noise detection module 6, the greater the output power of the speaker 7.

[0029] The low-speed alarm provided in the utility model can control the speaker 7 to make a sound, so as to remind the pedestrians or vehicles around, reduce the driving risk, and do not need the driver to manually press the horn, thereby improving the automation degree of the alarm prompt, and can timely remind the pedestrians or vehicles around, avoid vehicle accidents, and avoid related losses.

[0030] When the utility model is specifically implemented, the AVAS controller 1 includes a communication module, a signal processing module, an MCU main control module, a storage module, a power module, and an audio driver module. The communication module is electrically connected to the communication interface of the MCU main control module, the power module is electrically connected to the power interface of the MCU main control module, the output end of the signal processing module is electrically connected to the input end of the MCU main control module, and the storage module and the audio driver module are electrically connected to the output end of the MCU main control module respectively. The utility model sets a low-speed threshold inside the MCU main control module of the AVAS controller 1, and the low-speed threshold is that the vehicle speed is greater than 0km / h and less than 30km / h. The VCU car controller 2 sends the collected actual vehicle speed signal to the AVAS controller 1 through the CAN communication line 3. The AVAS controller 1 obtains the vehicle speed data through the VCU car controller 2. When the collected vehicle speed data of the AVAS controller 1 is less than the set vehicle speed threshold, the AVAS controller 1 controls the speaker 7 to give an alarm prompt.

[0031] The utility model electrically connects the audio driving module with the speaker 7 , and the MCU main control module of the AVAS controller 1 is electrically connected with the speaker 7 through the audio driving module.

[0032] The low-speed alarm of the utility model includes a radar signal preprocessing module 8, the input end of the radar signal preprocessing module 8 is electrically connected to the vehicle-mounted radar 5, the output end of the radar signal preprocessing module 8 is electrically connected to the input end of the signal processing module of the AVAS controller 1, the vehicle-mounted radar 5 is electrically connected to the signal processing module through the radar signal preprocessing module 8, and the low-speed alarm includes a camera signal preprocessing module 9, the input end of the camera signal preprocessing module 9 is electrically connected to the camera 4, the output end of the camera signal preprocessing module 9 is electrically connected to the input end of the signal processing module of the AVAS controller 1, and the camera 4 is electrically connected to the signal processing module through the camera signal preprocessing module 9.

[0033] When the embodiment of the utility model is specifically implemented, the MCU main control module includes an MCU main control chip U1, a resistor R15, and a resistor R16. The model of the MCU main control chip U1 is APM32F072XBT7. The 44th pin of the MCU main control chip U1 is electrically connected to the resistor R15 and the resistor R16; the storage module includes a memory U3, a resistor R28, and a capacitor C36. The model of the memory U3 is MX25R3235FM2IH0. The 7th pin of the memory U3 is electrically connected to the resistor R28, the 8th pin of the memory U3 is electrically connected to the capacitor C36, and the 25th pin, the 26th pin, the 27th pin, and the 28th pin of the MCU main control chip U1 are electrically connected to the 1st pin, the 6th pin, the 2nd pin, and the 5th pin of the memory U3 respectively. When specifically implemented, the storage module is used to store various alarm prompt voice data, such as: "Vehicle start, please pay attention", "Reversing, please pay attention", "Left turn, please pay attention", "Right turn, please pay attention" and other prompt voices. The audio driver module includes an audio power amplifier chip U6, a resistor R39, and a capacitor C57. The model of the audio power amplifier chip U6 is SA51510. The second pin of the audio power amplifier chip U6 is electrically connected to the resistor R39, the third pin of the audio power amplifier chip U6 is electrically connected to the capacitor C57, the sixth pin, the seventh pin, and the eighth pin of the audio power amplifier chip U6 are respectively electrically connected to the fourteenth pin, the fifteenth pin, and the sixteenth pin of the MCU main control chip U1 of the MCU main control module, and the thirteenth pin and the tenth pin of the audio power amplifier chip U6 are respectively electrically connected to the speaker.

[0034] In the specific implementation of the utility model, the noise detection module 6 is a microphone, and the AVAS controller 1 is electrically connected to the noise detection module 6 through the input end of the signal processing module. When the vehicle is traveling at a low speed, the MCU main control module of the AVAS controller 1 obtains the noise signal from the microphone, and the MCU main control module controls the audio driving module to adjust the power output of the speaker 7 according to the size of the noise signal obtained. The greater the noise obtained, the greater the output power required by the speaker 7.

[0035] The VCU automobile controller 2 of the utility model is electrically connected to a 12V auxiliary battery, and the VCU automobile controller 2 is powered by the 12V auxiliary battery. The input end of the VCU automobile controller 2 is electrically connected to a power switch, an accelerator pedal, a brake pedal, a gear switch, and a vehicle speed sensor. The VCU automobile controller 2 can collect and receive information sent by the power switch, the accelerator pedal, the brake pedal, the gear switch, and the vehicle speed sensor, and electrically connect the vehicle speed sensor to the VCU automobile controller 2. The VCU automobile controller 2 is used to collect the vehicle speed of the vehicle in real time. The vehicle speed signal data collected by the vehicle speed sensor is sent to the VCU automobile controller 2. The VCU automobile controller 2 sends the collected vehicle speed signal to the AVAS controller 1 through the CAN communication line 3. The AVAS controller 1 obtains the vehicle speed data through the VCU automobile controller 2. A low speed threshold is set inside the MCU main control module of the AVAS controller 1. When the vehicle speed data collected by the AVAS controller 1 is less than the set vehicle speed threshold, the AVAS controller 1 controls the speaker 7 to give an alarm prompt.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low speed alarm for driving a new energy vehicle, characterized in that: The low-speed alarm includes an AVAS controller, a VCU vehicle controller, and a CAN communication line. The AVAS controller is connected to the VCU vehicle controller via the CAN communication line. The low-speed alarm also includes a camera, an on-board radar, a noise detection module, and a speaker. The input end of the AVAS controller is respectively connected to the camera, the noise detection module, and the on-board radar, and the output end of the AVAS controller is electrically connected to the speaker.

2. The low speed alarm for driving a new energy vehicle according to claim 1 is characterized in that: The AVAS controller includes a communication module, a signal processing module, an MCU main control module, a storage module, a power module, and an audio driver module. The communication module is electrically connected to the communication interface of the MCU main control module, the power module is electrically connected to the power interface of the MCU main control module, the output end of the signal processing module is electrically connected to the input end of the MCU main control module, and the storage module and the audio driver module are electrically connected to the output end of the MCU main control module respectively.

3. The low speed alarm for driving a new energy vehicle according to claim 2 is characterized in that: The audio driving module is electrically connected to the speaker, and the MCU main control module of the AVAS controller is electrically connected to the speaker through the audio driving module.

4. The low speed alarm for driving a new energy vehicle according to claim 1 is characterized in that: The low-speed alarm includes a radar signal preprocessing module, an input end of the radar signal preprocessing module is electrically connected to a vehicle-mounted radar, an output end of the radar signal preprocessing module is electrically connected to an input end of a signal processing module of an AVAS controller, and the vehicle-mounted radar is electrically connected to the signal processing module via the radar signal preprocessing module.

5. The low speed alarm for driving a new energy vehicle according to claim 1 is characterized in that: The low-speed alarm includes a camera signal preprocessing module, the input end of the camera signal preprocessing module is electrically connected to the camera, the output end of the camera signal preprocessing module is electrically connected to the input end of the signal processing module of the AVAS controller, and the camera is electrically connected to the signal processing module via the camera signal preprocessing module.

6. The low speed alarm for driving a new energy vehicle according to claim 2 is characterized in that: The MCU main control module includes an MCU main control chip U1, a resistor R15, and a resistor R16. The model of the MCU main control chip U1 is APM32F072XBT7. The 44th pin of the MCU main control chip U1 is electrically connected to the resistor R15 and the resistor R16. The storage module includes a memory U3, a resistor R28, and a capacitor C36. The model of the memory U3 is MX25R3235FM2IH0. The 7th pin of the memory U3 is electrically connected to the resistor R28, the 8th pin of the memory U3 is electrically connected to the capacitor C36, and the 25th pin, the 26th pin, the 27th pin, and the 28th pin of the MCU main control chip U1 are electrically connected to the 1st pin, the 6th pin, the 2nd pin, and the 5th pin of the memory U3, respectively.

7. The low speed alarm for driving a new energy vehicle according to claim 2 is characterized in that: The audio driving module includes an audio power amplifier chip U6, a resistor R39, and a capacitor C57. The model of the audio power amplifier chip U6 is SA51510. The second pin of the audio power amplifier chip U6 is electrically connected to the resistor R39, the third pin of the audio power amplifier chip U6 is electrically connected to the capacitor C57, the sixth pin, the seventh pin, and the eighth pin of the audio power amplifier chip U6 are respectively electrically connected to the fourteenth pin, the fifteenth pin, and the sixteenth pin of the MCU main control chip U1 of the MCU main control module, and the thirteenth pin and the tenth pin of the audio power amplifier chip U6 are respectively electrically connected to the speaker.

8. The low speed alarm for driving a new energy vehicle according to claim 1 is characterized in that: The input end of the VCU automobile controller is electrically connected to a power switch, an accelerator pedal, a brake pedal, a gear switch, and a vehicle speed sensor. The VCU automobile controller can collect and receive information sent by the power switch, the accelerator pedal, the brake pedal, the gear switch, and the vehicle speed sensor.

9. The low speed alarm for driving a new energy vehicle according to claim 1, characterized in that: The noise detection module is a microphone, and the AVAS controller is electrically connected to the noise detection module through the input end of the signal processing module.

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