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• The pick-up sides are distorted by Coriolis force
the center axis of the sensor pillar. Two piezoelectric pick-up sides convert the distortion amount into two
electrical signals to indicate the exact yaw ratio.
PICK-UP (LEFT)
OUTPUT VOLTAGE
(LEFT)
DRIVE TRANSDUCER
INPUT VOLTAGE
*
Coriolis force:If turning velocity is added to an already-moving object, force is produced at a right angle to the
object's path of travel.
INTENDED DIRECTION OF OBJECT
CENTER AXIS
MOVING
OBJECT
OBJECT'S ACTUAL DIRECTION OF ADVANCE
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AUTONOMOUS NAVIGATION OPERATION
• The navigation unit detects the position of the vehicle from a cumulative calculation of the vehicle's direction
and travelled distance based on the processing of direction data obtained from the gyro sensor and vehicle
speed signals obtained from the speedometer sensor (built into microcomputer inside instrument cluster).
• Even when GPS satellite reception is not available, accurate detection of vehicle's position is still possible.
• Signals from GPS satellites are used partially for detecting direction data.
End Of Sie
GPS (GLOBAL POSITIONING SYSTEM) NAVIGATION OUTLINE
• GPS is a navigation system developed by the U.S. Department of Defence. The system has GPS satellites
orbiting the earth at an altitude of approximately 21,000 km {13,000 miles}.
• There are at least five satellites over any point 24 hours a day.
• The navigation unit receives radio signals from these satellites and determines a vehicle's position.
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09–20–20
ENTERTAINMENT
*
, which happens as a result of the turning arc and its effect on
PICK-UP (RIGHT)
OUTPUT VOLTAGE
OUTPUT VOLTAGE
(RIGHT)
(LEFT)
STRAIGHT AHEAD
TRAVEL
MOVING OBJECT
TURNING
DIRECTION
PICK-UP (LEFT)
PICK-UP (RIGHT)
DRIVE TRANSDUCER
INPUT VOLTAGE
CENTER AXIS
CORIOLIS FORCE
OUTPUT VOLTAGE
(RIGHT)
STRAIGHT AHEAD
TRAVEL
RIGHT TURN
TRAVEL
CHU0920S108
TURNING
DIRECTION
CHU0920S109
CHU092066902S05
CHU092066902S06
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