System for detecting speed of engine for vehicle

Details System for detecting speed of engine for vehicle System for detecting speed of engine for vehicle

1990-04-03

1991-01-15

Raevis, Robert

Measuring and testing

Simulating operating condition

Marine

G01M 1500

Patent

active

049844555

ABSTRACT:
A system for detecting the speed of an engine for a vehicle calculates the engine speed in accordance with a signal which is outputted from a main rotation sensor in accordance with the operation of the engine. In case the main rotation sensor is subjected to malfunction, the engine speed is calculated using a back-up signal. Namely, an auxiliary rotation sensor detects the rotation of a portion of a power transmission device. When the above portion of the power transmission device is connected to an output shaft of the engine, the signal from the auxiliary rotation sensor is used as the back-up signal. When the two are disconnected from each other, a signal, representing the condition of the operation of an actuator for controlling the amount of supply of fuel to the engine, is used as the back-up signal.

REFERENCES:
patent: 4700563 (1987-10-01), Iwata et al.
patent: 4740898 (1988-04-01), McKee et al.
patent: 4757449 (1988-07-01), Kurihara et al.
patent: 4928242 (1990-05-01), Suzuki

Affiliated with

Also associated with

Rating

System for detecting speed of engine for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for detecting speed of engine for vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for detecting speed of engine for vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-48414