CAPACITOR (i-ELOOP) [i-ELOOP]

id131704502000


Purpose, Function

•  The capacitor (i-ELOOP) is a storage battery which can be charged with/discharge large amounts of current instantaneously. In conjunction with the variable voltage type generator which can generate a maximum of 24.3 V, the capacitor (i-ELOOP) can also be charged efficiently with the generated power in a short period of time.

Construction

•  The capacitor (i-ELOOP) is installed directly below the front combination light (LH).
•  The capacitor (i-ELOOP) is equipped with service plug. A short circuit can be prevented by pulling out the service plug because 24.3 V related power is interrupted.
•  A thermistor type temperature sensor is equipped inside the capacitor (i-ELOOP). The temperature sensor detects the temperature of the capacitor (i-ELOOP) and inputs the signal to the DC-DC converter (i-ELOOP).
•  A discharge box is equipped in the capacitor (i-ELOOP). The discharge box serves the purpose of assuring safety when the capacitor (i-ELOOP) is discarded. By forcing the capacitor (i-ELOOP) to discharge using the resistor, the capacitor (i-ELOOP) will not ignite even when pressed.
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•  The capacitor (i-ELOOP) has the following input/outputs.
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Terminal signal

Input/output
2A
Power input from generator.
3A
Power output to DC-DC converter (i-ELOOP).
1A
Temperature sensor signal output to DC-DC converter (i-ELOOP).
1B
GND (Temperature sensor GND)

•  Although the battery generates chemical reactions to charge/discharge electricity, the capacitor (i-ELOOP) does not, and instead charges/discharges physically. As a result, the capacitor (i-ELOOP) is able to charge/discharge large amounts of electricity more rapidly than the battery, and deterioration of the electrodes is gradual with a long service life.
Charging
―  Electrical charge adheres to surface of electrodes.
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Discharging
―  Electrical charge separates and moves from surface of electrodes.
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Fail-safe

DC-DC converter (i-ELOOP)

DTC

Fail-safe
P0A12:00
•  Inhibits engine-stop by operating the i-stop function.
•  Switches to bypass mode which shuts the capacitor (i-ELOOP) off.
P1794:00
•  Inhibits engine-stop by operating the i-stop function.
•  Inhibits the i-ELOOP control.
P1794:49
P1794:01
•  Inhibits engine-stop by operating the i-stop function.
•  Inhibits the i-ELOOP control.
•  Switches to bypass mode.
P1794:13
P1794:14
P1794:1B
P1794:11
•  Inhibits engine-stop by operating the i-stop function.
•  Inhibits the i-ELOOP control.
•  Inhibits the pre-charge control.
•  Switches to bypass mode.

PCM

DTC

Fail-safe
P2502:00
•  Inhibits engine-stop by operating the i-stop function.
•  Generator switch to default mode requested (14.5 V constant voltage power generation).
•  Transition to i-ELOOP bypass mode.
P2504:00
•  Inhibits engine-stop by operating the i-stop function.
•  Generator switch to default mode requested. If the temperature of the generator exceeds the specified value, the generator itself stops power generation. But, if the internal circuit of the generator is malfunctioning, the generator may not accept the demand from the PCM.