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Vehicle control device

A technology for control devices and vehicles, applied to automatic starting devices, brakes, etc., can solve problems such as inability to ensure deceleration, and achieve the effect of suppressing collision damage and reducing the sense of incongruity

Active Publication Date: 2020-11-20
HITACHI ASTEMO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application of the above vehicle control device for passenger cars to small and medium-sized trucks or buses (hereinafter referred to as small or medium-sized trucks, etc.) has been studied, and the weight of small or medium-sized trucks and the like is Therefore, if the same hydraulic brakes as passenger cars are used for control, there is a problem that the amount of deceleration sufficient to avoid or reduce collision damage cannot be ensured

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0097] For example, the brake operation timing and the like differ depending on the driver. Under the assumption that many people share one vehicle, in the above-mentioned step S102, it is preferable to set an area for storing brake operation information for each driver in the storage unit 103, so that the characteristics related to each driver can be stored. Corresponding brake operation time. In this case, as a driver identification method, for example, a key of the vehicle is distributed to each driver, and the vehicle control device 100 identifies the driver using the key to grasp the change of the driver. That is, in this case, the vehicle control device 100 functions as a driver recognition unit that recognizes the driver. In addition, in addition to the key, information that can identify the driver such as an IC card or fingerprint authentication can be registered in advance. brake operation time information, etc.

[0098]In addition, when a plurality of people share...

Deformed example 2

[0100] In addition, assume a case where the vehicle to which the present invention is applied is a small or medium-sized bus, and unspecified passengers are loaded. In this case, there is no risk of damage compared to the case where the objects to be loaded are works of art or precision equipment, so step S104 can be replaced with the following.

[0101] That is, an in-vehicle monitoring camera is provided, and when the in-vehicle monitoring camera detects that there are no passengers in the vehicle, the initial braking maximum deceleration is set to an allowable maximum deceleration, for example, 0.4G. On the other hand, when a passenger is detected and there is a standing passenger, the initial braking maximum deceleration is set to a deceleration such that the passenger does not fall, for example, 0.15G. Also, when there is a passenger and there is no standing passenger, the initial braking maximum deceleration is set to a deceleration that does not cause a passenger sittin...

Deformed example 3

[0105] In addition, when the object of loading is goods (also referred to as transport items) managed by barcodes or the like as in the shipping industry, the above step S104 may be changed to the following.

[0106] The vehicle control device 100 acquires information on cargo loaded on the own vehicle through communication with the center of the delivery system. Then, when it is known that the contents of the cargo are items that are likely to be damaged due to acceleration, such as precision machinery or artwork, the initial braking maximum deceleration is set to a deceleration that does not cause damage. Speed, for example 0.2G. On the other hand, when it is known that the transported item is a highly impact-resistant item such as clothing, the initial braking maximum deceleration is set to an allowable maximum deceleration, for example, 0.4G. In this case, the vehicle control device 100 switches the initial braking maximum deceleration according to the contents of the car...

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PUM

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Abstract

Provided is a vehicle control device such that it is possible to suppress collision damage while reducing the influence on the load and feeling less unnatural to the driver. This vehicle control device 100 performs deceleration control for a vehicle 1 on the basis of the distance and relative speed between the vehicle 1 and an obstacle ahead of the vehicle. This vehicle control device 100 comprises a control unit 101 that sequentially performs initial braking and main braking for the vehicle 1. The control unit 101 controls the timing of initial braking on the basis of the estimated weight ofthe vehicle including the weight of the load, without changing the timing of main braking.

Description

technical field [0001] The present invention relates to a control device for a vehicle, and more particularly to a control device for a vehicle mounted on a small or medium-sized truck or bus to suppress collision damage. Background technique [0002] In recent years, with the automation of vehicle control and the low cost of sensors, the technology of using radar and cameras to detect obstacles and automatically apply brakes when there is a possibility of collision, thereby avoiding or reducing collision damage has continued to advance. . For example, Patent Document 1 discloses a vehicle control device mounted on a passenger car. The vehicle control device of this Patent Document 1 calculates the distance and relative speed between the obstacle in front of the own vehicle and the own vehicle based on the image captured by the stereo camera, and automatically brakes the vehicle when it is difficult for the driver to avoid such a short distance. to avoid or mitigate collis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12
CPCB60T7/22B60T2201/022B60T2250/02B60T13/662B60T8/171B60T8/172B60T8/18B60T8/58B60T2210/32B60T2220/00
Inventor 清水亮介
Owner HITACHI ASTEMO LTD