Method and system for evaluating driving conditions of a vehicle

Abstract

The method and system to evaluate driving conditions of a vehicle whereby drivability of the vehicle can be evaluated accurately and objectively. To evaluate drivability of the vehicle under different driving conditions, a plural pieces of driving load information including biological information on a driver and movement information of the vehicle being driven are measured. Then, a group of weighting coefficients as many as or fewer than pieces of the driving load information is selected from groups of weighting coefficients that are set according to representative values of the driving load information in order to use a weighted linear sum of the representative values of the driving load information as an index of an integrated evaluation of the drivability of the vehicle. Subsequently, a weighted linear sum is obtained using the selected group of weighting coefficients and used to perform the integrated evaluation of the drivability under various driving conditions.

Description

technical field [0001] The present invention relates to a vehicle running condition evaluation method and an evaluation device thereof for evaluating the drivability (drivability) of a vehicle when a driver drives the vehicle under a plurality of different driving conditions. Background technique [0002] In recent years, various proposals have been made to use biological information of a driver who drives a vehicle for vehicle control. In addition, various methods of using the driver's myoelectric potential for evaluating vehicle handling have been proposed. [0003] For example, Patent Document 1 below describes a method of measuring the myoelectric potential of a driver's deltoid muscle or the like during steering of a vehicle to evaluate running comfort. [0004] Patent Document 1 below proposes a device for evaluating the comfort level of work. This device uses detection sensors to detect myoelectric potentials of multiple muscles (muscles). The myoelectric waveform ...

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Problems solved by technology

[0008] However, in Patent Document 1, the level of work comfort is evaluated by normalizing the simultaneous contraction strength of muscles that are obtained from biological information and greatly changed due to the mental stress of the subject. With this simultaneous contraction waveform, it is not necessarily possible to fully evaluate the comfort of work and the ease of work (lightness)

[0009] On the other hand, in Patent Document 2, it is a device for judging a decrease in the driver's sobriety, not a device for evaluating the driver's ease of operation.

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