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Electric vehicle low-speed warning tone system and control method

A control method and prompt sound technology, applied to radio wave measurement systems, vehicle components, instruments, etc., can solve the problems of different alarm sounds and failure to send out, so as to facilitate identification, reduce impact, reduce pollution and waste of energy Effect

Active Publication Date: 2018-01-12
JILIN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the current technology, the present invention provides a low-speed warning sound system for an electric vehicle to overcome the problem that the prior art cannot issue different alarm sounds according to the specific working conditions of the electric vehicle

Method used

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  • Electric vehicle low-speed warning tone system and control method
  • Electric vehicle low-speed warning tone system and control method
  • Electric vehicle low-speed warning tone system and control method

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0046] In this example, if figure 2 As shown, the electric vehicle low-speed prompt sound system of the present invention includes a 24GHz millimeter-wave radar, a vehicle speed sensor, an acceleration sensor, a vehicle gear sensor, a controller ECU, and a loudspeaker. The 24GHz millimeter-wave radar device is arranged on the front and rear bumpers and both sides of the car to detect the information of the obstacle distance L; the vehicle speed sensor is used to collect the information of the speed V of the electric vehicle; the acceleration sensor is used to collect the information of the acceleration a of the electric vehicle , The car gear sensor is used to collect the gear information of the electric vehicle. Obstacle distance information, speed information, acceleratio...

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Abstract

The invention discloses an electric vehicle low-speed warning tone system. According to the electric vehicle low-speed warning tone system, information of the obstacle distance, the electric vehicle speed, the accelerated speed and gears is collected through a 24GHz millimeter wave radar device, a speed sensor, an acceleration sensor and a gear sensor correspondingly and transmitted to a controller ECU, and different working condition warning tones are called by the controller ECU through treatment and judgment on the information. According to the electric vehicle low-speed warning tone system, when an electric vehicle travels at the low speed, different warning sounds can be made according to the specific working conditions of the electric vehicle, and distinguishing of other users on a road is facilitated accordingly.

Description

technical field [0001] The invention relates to a vehicle prompt sound system, in particular to a low-speed prompt sound system for a pure electric vehicle. Background technique [0002] Pure electric vehicles are quieter at low speeds than conventional internal combustion engine vehicles. Relevant studies have shown that when driving at low speeds, the average external noise of electric vehicles is about 10Db lower than that of internal combustion vehicles. This will make it difficult for other users of the road, such as bicycles, pedestrians, especially the blind and visually impaired to detect pure electric vehicles. Regarding the safety of quiet driving vehicles, relevant laws and regulations have been drafted in Europe, America and Japan. In GB / T28382-2012 "Technical Conditions for Pure Electric Passenger Vehicles", my country has made qualitative requirements for electric vehicles to be equipped with a low-speed prompt sound system: "4.4 Safety conditions... The vehi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q5/00G01S7/02
CPCY02T10/72
Inventor 陈书明宋世壮陈文海贾纪昭朱彤彤王业斌朱文波
Owner JILIN UNIV
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