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Alert device for vehicles

一种警报装置、车辆的技术，应用在车辆部件、信号装置、声响信号装置等方向，能够解决行人不太容易识别等问题

Active Publication Date: 2020-03-17
MITSUBISHI MOTORS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Electric vehicles, such as EVs and HEVs, are fairly quiet at low speeds, and unfortunately, nearby pedestrians are less easily identifiable

Method used

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  • Alert device for vehicles
  • Alert device for vehicles
  • Alert device for vehicles

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0050] Preferred embodiments of the vehicle alarm device according to the present invention will be described in detail with reference to the accompanying drawings.

[0051] figure 1 is a block diagram showing the structure of the vehicle alarm device 10 according to the embodiment.

[0052] In this embodiment, it is assumed that the vehicle alarm device 10 is mounted on a hybrid vehicle equipped with an engine and a motor (hereinafter simply referred to as a hybrid vehicle).

[0053] The vehicle alarm device 10 has an alarm ECU 12 and a speaker (warning sound output unit) 14 .

[0054] A brake pedal sensor 22 , an accelerator pedal sensor 24 , a wheel speed sensor 26 , a shift position sensor 28 and an engine ECU 30 are connected to the alarm ECU 12 .

[0055] The brake pedal sensor 22 detects an operation state (operation amount) of a brake pedal (not shown) by the driver of the vehicle, and outputs the information to the alarm ECU 12 .

[0056] The accelerator pedal sen...

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Abstract

A speaker 14 outputs an alert sound for announcing the presence of a vehicle to the outside of the vehicle. A travel commencement detection unit 122 detects the commencement of travel by the vehicle.An acoustic pressure control unit 124 controls the acoustic pressure of the alert sound to be output from the speaker 14 on the basis of the travel state of the vehicle. The acoustic pressure controlunit 124 causes the speaker 14 to output the alert sound while the vehicle is stopped, and on detecting the commencement of travel by the vehicle, increases the acoustic pressure of the alert sound over that in the stopped state. Thus, with respect to low-noise vehicles such as electric vehicles, the starting off of the vehicle is announced without causing discomfort to people in the vicinity.

Description

technical field [0001] The present invention relates to a vehicle alarm device that outputs a warning sound for announcing the presence of a vehicle to the outside of the vehicle. Background technique [0002] Electric vehicles, such as EVs and HEVs, are fairly quiet at low speeds, and unfortunately, nearby pedestrians are less easily identifiable. [0003] In order to solve this problem, a technique has been developed by which a warning sound is output during low-speed running to inform the outside of the vehicle of the presence of the vehicle. [0004] For example, the following Patent Document 1 discloses an alarm device for a low-noise vehicle, which is designed to emit a warning sound when the vehicle starts running, the warning sound is kept loud for the first 5 seconds, and then attenuation. According to Patent Document 1, the low-level warning sound is designed to last until the vehicle speed exceeds 10 km / h. [0005] Citation list [0006] patent documents [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q5/00
CPCB60Q5/008
Inventor 工藤嘉大
Owner MITSUBISHI MOTORS CORP
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