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Automatic traveling control device

A technology for automatic driving and control devices, applied in the direction of control devices, non-electric variable control, safety devices, etc., can solve the problems of map information output speed reduction, data reliability, CPU processing speed reduction, abnormalities, etc.

Active Publication Date: 2018-12-04
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Document 1, the abnormality of the detection information of the sensor is determined based on the map information, while the accuracy of the map information is not considered at all.
[0005] However, in general, when inputting and outputting data to a storage device, if the ambient temperature of the storage device becomes high, the rate of errors contained in data reading or writing may increase.
For example, it may be assumed that the temperature of the storage device storing the high-precision map may rise outside the range of the recommended ambient temperature depending on the driving environment of the vehicle, etc. High-precision map information, or the update data of the high-precision map cannot be correctly written to the storage device
[0006] Also, when the error correction rate of the read data etc. becomes high, data relief processing such as rereading of the read data may be performed repeatedly in the storage device.
When the frequency of such processing increased, the data readout speed in the storage device decreased significantly, so there was a significant increase in the time until data reception at the CPU (Central Processing Unit) place of the automatic driving control device and the processing speed of the CPU Reduced situation
[0007] In this way, when the temperature of the storage device used in the vehicle becomes extremely high, the reliability of the data input and output in the storage device and the processing speed of the CPU may decrease. Reduced capacity in automatic driving control devices that output data and high-speed processing performance of the data
[0008] However, in the conventional automatic driving control device, the storage device used in the control device and the high-temperature processing capability of the CPU are not considered. For example, in the case of the automatic driving control device described in Patent Document 1, the Depending on the operating environment temperature of the storage device, the output speed of the map information output from the storage device may decrease or the processing speed of the CPU may decrease.

Method used

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Examples

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no. 1 approach

[0027] First, the configuration of an automatic running control device for controlling automatic running of a vehicle according to the present embodiment will be described. figure 1 It is a block diagram showing the configuration of the vehicle 10 provided with the automatic travel control device 102 of the present embodiment.

[0028] The vehicle 10 includes an automatic driving control device 102, a detection device composed of an imaging device 120 that outputs a detection signal to the automatic driving control device 102, a satellite positioning device 122, a communication device 124, a distance measuring device 126, and a radar 128. Travel operation equipment constituted by a steering device 130 , a drive device 132 , a brake device 134 , and the like that operate based on a signal output from the automatic travel control device 102 .

[0029] The imaging device 120 is, for example, a camera composed of an optical element such as a lens and a solid-state imaging element ...

Deformed example 1

[0053] exist figure 2 In the shown processing flow, when the temperature of the storage device 106 exceeds 85° C. which is the guaranteed operation temperature, all automatic driving is stopped, but the present invention is not limited thereto. For example, it may be as follows: image 3 In this way, a part of the automatic driving operation is stopped.

[0054] image 3 can replace the first embodiment figure 2 The processing flow used by the processing flow shown. In the processing flow of Modification 1, when the temperature of the storage device 106 exceeds 85° C., which is the operation guaranteed temperature, in S306 to S308, the CPU 104 controls some functions of the automatic driving, for example, the function related to the automatic driving of the steering. stop. Upon receiving this signal, the driver is urged to hold the steering device, and the operation is handed over to the driver to change the steering to manual operation.

[0055] This is because even if...

Deformed example 2

[0058] exist image 3 In the shown processing flow, when the temperature of the storage device 106 exceeds 85° C. which is the guaranteed operation temperature, the automatic driving of at least any one of output, steering, and braking is stopped, but the present invention is not limited thereto. Such as Figure 4 As shown, automatic driving continues according to the type of road being driven.

[0059] Figure 4 For example, it can also replace Modification 1 image 3 The processing flow used by the processing flow. and image 3 The difference in the processing flow is that when the temperature of the storage device 106 exceeds 85°C, which is the guaranteed operating temperature, even in the case of driving on an expressway (S406: Yes), the process based on the information detected by the sensor is continued. automatic driving (S407). As described above, even if the road structure map cannot be used, automatic driving such as constant speed driving while maintaining the...

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Abstract

The invention provides an automatic traveling control device capable of reliably switching from manual driving to automatic driving or from automatic driving to manual driving or restricting automaticdriving even when the storage device is exposed to a high temperature. The automatic traveling control device includes a storage device configured to store a road structure map including at least a position and a shape of each portion of a road, a signal processing device configured to control automatic traveling of a vehicle on the basis of at least the road structure map supplied from the storage device, and a temperature output device configured to measure or estimate a temperature of the storage device. The signal processing device outputs a signal for instructing stopping some or all ofautomatic driving functions to be executed by the automatic traveling control device when the temperature output from the temperature output device exceeds a predetermined temperature.

Description

technical field [0001] The present invention relates to a vehicle control device, in particular to an automatic driving control device for controlling automatic running of a vehicle. Background technique [0002] In recent years, the development of an automatic driving control device that automatically controls output, steering, and braking of a vehicle has progressed. Such an automatic driving control device controls the automatic driving of the vehicle based on the detection information detected by a plurality of sensors for detecting the position and running environment of the vehicle and the high-precision map information stored in the storage device in the automatic driving control device. Take control. [0003] In the control of automatic driving of a vehicle, high accuracy is required for both detection information and high-precision map information, and when there is a problem with the reliability of each information, it may be necessary to stop the automatic drivin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/182
CPCB60W30/182B60W2555/00G05D1/0055G05D1/0066G05D1/0061G05D1/0274G05D1/0088G05D1/0257G05D1/0231G05D1/0278
Inventor 小西仁泷口裕崇
Owner HONDA MOTOR CO LTD
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