Claims:1. A controller (110) configured to determine health of a battery (112) in a
vehicle (100), said controller (110) configured to
determine voltage parameters of said battery (112) during cranking
of an engine (116) of said 5 vehicle (100), and
determine health of said battery (112) using said voltage parameters.
2. The controller (110) as claimed in claim 1, wherein said parameters are
initial voltage and voltage slope between a last voltage dip to a stabilized
10 voltage of said battery (112).
3. The controller (110) as claimed in claim 1, wherein said voltage parameters
are measured once entry conditions for determining health of said battery
(112) are satisfied.
4. The controller (110) as claimed in claim 3, wherein said entry conditions
comprises
a first condition comprising said battery (112) to be charged to a
predetermined voltage level, and
20 a second condition comprising said battery (112) to be at a
predetermined temperature.
5. The controller (110) as claimed in claim 3, wherein said entry conditions
are determined based on any one of an engine speed and a voltage of said
25 battery (112) for a first condition, and at least one of an engine coolant
temperature, engine oil temperature, engine runtime and a temperature of
said battery (112) for a second condition.
6. A method for determining health of a battery (112) in a vehicle (100), said
30 method comprising the steps of:
determining voltage parameters of said battery (112) during
cranking of an engine (116) of said vehicle (100), and
determining health of said battery (112) using said voltage
parameters.
7. The method as claimed in claim 6, wherein said parameters are initial
voltage and voltage slope between a last voltage dip and a stabilized voltage
of said battery (112).
8. The method as claimed in claim 6, wherein said voltage parameters are
measured after satisfying entry conditions for initiating the determination of
health of said battery (112).
9. The method as claimed in claim 8, wherein said entry conditions comprises
15 a first condition, comprising checking said battery (112) to be
charged to a predetermined voltage level, and
a second condition comprising checking said battery (112) to be at a
predetermined temperature.
10. The method as claimed in claim 8, wherein said entry conditions are
determined based on any one of an engine speed and a voltage of said battery
(112) for a first condition, and at least one of an engine coolant temperature,
engine oil temperature, engine runtime and a temperature of said battery
(112) for a second condition. , Description:The controller 110 configured to measure voltage parameters of the battery 112
during cranking of the engine 116 of the vehicle 100. The controller 110 determines
health of the battery 112 using the voltage parameters. The voltage parameters are
initial voltage of the battery 112 and voltage slope between a last voltage dip to a
stabilized voltage of the battery 112. The voltage parameters are measured once
entry conditions for determining health of the battery 112 are satisfied. The entry
conditions comprises a first condition comprising the battery 112 to be charged to
a predetermined voltage level, and a second condition comprising the battery 112
to be at a predetermined temperature. The controller 110 enables the indication of
the battery SOH without the use of any additional sensors or actuators or require
any modification on a vehicle 100.