Road condition discriminating system
A rough road discriminating system for a vehicle having a wheel system comprising: vehicle speed sensor means, adapted to be mounted on a part of the wheel system of the vehicle, for generating a vehicle speed signal in response to revolutions of a wheel thereof; processing means for performing the following functions: (a) computing a value of wheel acceleration/deceleration as a rate of change of wheel speed representing a differentiated value of wheel speed, based on the vehicle speed signal, (b) generating a change degree signal by computing an amount of change in a magnitude of the wheel accelerating/decelerating during a predetermined period of time, and (c) comparing the change degree signal with a set value and generating a rough road decision signal indicting that the vehicle is running on a rough road when the change degree signal exceeds the set value; and actuating means for controlling actuating means of the vehicle in accordance with the rough road decision signal from the processing means.
- Assignee:
- Nippondenso Co., Ltd., Kariya
- Patent Number(s):
- US 4651290
- OSTI ID:
- 6977932
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320203* -- Energy Conservation
Consumption
& Utilization-- Transportation-- Land & Roadway
ACCELERATION
ACTUATORS
COMPLEX TERRAIN
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DATA PROCESSING
LAND TRANSPORT
MEASURING INSTRUMENTS
MOTION
PROCESSING
ROAD TRANSPORT
ROTATION
SIGNALS
TIME DEPENDENCE
TRANSPORT
VEHICLES
VELOCIMETERS
VELOCITY
WHEELS