Claims:1. A controller (110) to determine clutch wear, said controller (110) configured
to
receive a first input signal from an engine speed sensor (102),
characterized 5 in that
receive a second input signal from a vehicle speed sensor (104),
determine a gear position, and
determine a parameter indicative of clutch wear using said first input
signal, said second input signal and said determined gear position.
2. The controller (110) as claimed in claim 1, wherein said parameter is
selected from a group comprising at least one of a wheel radius and a ratio
of engine speed and vehicle speed.
3. The controller (110) as claimed in claim 2, wherein said wheel radius is
determined based on said vehicle speed, said engine speed and said
determined gear position.
4. The controller (110) as claimed in claim 1, wherein said gear position is
20 determined by any one of a gear position sensor (106) and a gear position
determining module, wherein said gear position determining module
estimates said gear position using said engine speed and said vehicle speed
through plausible conditions.
5. The controller (110) as claimed in claim 1, wherein initiation of clutch wear
determination is enabled once following conditions are true,
said gear position is at least greater than a threshold level;
a clutch lever is not pressed, and
a rate of change of throttle is above a threshold rate.
6. A method for determining clutch wear, said method comprising the steps of:
receiving a first input signal from an engine speed sensor (102),
characterized by
receiving a second input signal from a vehicle speed sensor (104),
determining a gear position, and
determining at least one parameter indicative of 5 clutch wear using
said first input signal, said second input signal and said determined
gear position.
7. The method as claimed in claim 6, wherein said at least one parameter is
10 selected from a group comprising a wheel radius and a ratio of engine speed
to said vehicle speed.
8. The method as claimed in claim 7, wherein said wheel radius is determined
based on said vehicle speed, said engine speed and said determined gear
15 position.
9. The method as claimed in claim 6, wherein said gear position is determined
by any one of a gear position sensor (106) and a gear position determining
module, wherein said gear position determining module determines said
20 gear position by processing said engine speed and said vehicle speed
through plausible conditions.
10. The method as claimed in claim 6, wherein determining of said clutch wear
is enabled when following conditions are true,
25 said gear position is at least greater than a threshold level;
a clutch lever is not pressed, and
a rate of change of throttle is above a threshold rate. , Description:The controller 110 configured to receive a first input signal from an engine speed
sensor 102, characterized in that, the controller 110 further configured to receive a
second input signal from a vehicle speed sensor 104, determine a gear position, and
then determine a parameter indicative of clutch wear using the first input signal, the
second input signal and the determined gear position. the parameter is selected from
a group comprising at least one of a wheel radius and a ratio of the engine speed to
the vehicle speed (also called as N/V ratio). The controller 110 monitors the extent
of the clutch slip during in-gear acceleration. The present invention provides a
sensor less solution to detect clutch wear in the vehicle. Additionally, with slight
modifications the solution is possible to be made agnostic and be offered as an
aftermarket product and does not need proprietary EMS as a prerequisite.