Methods and means for monitoring driver alertness and display means for displaying information related thereto
First Claim
1. A method of measuring the interaction between a driver and a vehicle in use to decide the security coefficient for vehicles and/or for drivers, characterised in that a measuring/registering and maybe calculating parasite system is connected to the steering system of the vehicle for a registering measurement of the signal quality between driver and vehicle, that implementing a known measuring impulse in the steering system in the ordinary noise during the manoeuvring of the vehicle, whereby the response from the driver on said measuring impulse will be registered by the parasite system which also compare the difference between an implemented impulse and the response from the driver, and presents said difference on a graphic display unit, as a characteristic sound, or store it in a memory device.
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Abstract
The present invention relates to a method and a device of measuring the interaction between a driver and a vehicle in use to decide the security coefficient for vehicles and/or for drivers, and an instrument showing said safety coefficients. The invention is characterised in that a measuring/registering and maybe calculating parasite system (16) is connected to the steering system (12) of the vehicle for a registering measurement of the signal activity (19) between driver (14) and vehicle (18), that implementing a known measuring impulse in the steering system in the ordinary noise during the manoeuvring of the vehicle, whereby the response from the driver on said measuring impulse will be registered by the parasite system (16) which also compare the difference between an induced impulse and the response pulse from the driver and presents said difference on a graphic display unit, as a characteristic sound, or store it in a memory device.
239 Citations
10 Claims
- 1. A method of measuring the interaction between a driver and a vehicle in use to decide the security coefficient for vehicles and/or for drivers, characterised in that a measuring/registering and maybe calculating parasite system is connected to the steering system of the vehicle for a registering measurement of the signal quality between driver and vehicle, that implementing a known measuring impulse in the steering system in the ordinary noise during the manoeuvring of the vehicle, whereby the response from the driver on said measuring impulse will be registered by the parasite system which also compare the difference between an implemented impulse and the response from the driver, and presents said difference on a graphic display unit, as a characteristic sound, or store it in a memory device.
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6. A method to map and in the vehicle graphically present values corresponding to the instant safety margins for the driver, the vehicle and maybe for the road environment, charaterised in that starting from an impulse being put on the steering mechanism of the vehicle and which impulse normally demands a reflex type compensation action from the driver, the torque and/or the angle deflection the driver executes on the steering wheel in connection to the compensation is measured, that existing inertia forces is registered, whereby the measured values regarding the driver and the vehicle are collected and shown graphically, possibly together with the values representing the purity values for the traffic environment.
- 7. A device to check the interaction between a driver and a vehicle in use to decide the security coefficient for the vehicle/driver, characteised in that a measuring/registering and maybe calculating parasite system is connected to the steering system of the vehicle for a registering measurement of the interaction between the driver and the vehicle, and registering the response from the driver of a known measure impulse which during the use of the vehicle is implemented in the steering system and is hidden below the ordinary noise level.
Specification