Nissan Versa Note. Manual - part 151

CHG

COMPONENT PARTS

CHG-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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A.

Engine room LH

B.

Engine room RH

C.

Combination meter

CHG-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

Component Description

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No.

Component part

Description

1

IPDM E/R

The IPDM E/R converts the received power generation com-
mand value into a pulse width modulated (PWM) command sig-
nal and sends it to the IC regulator.

2

ECM

The battery current sensor detects the charging/discharging 
current of the battery. The ECM judges the battery condition 
based on this signal.
The ECM judges whether to request more output via the power 
generation voltage variable control according to the battery 
condition.
When performing the power generation voltage variable con-
trol, the ECM calculates the target power generation voltage 
according to the battery condition and sends the calculated val-
ue as the power generation command value to the IPDM E/R.

3

Battery current sensor

The battery current sensor is located on the negative battery 
cable terminal. The battery current sensor detects the charg-
ing/discharging current of the battery and sends a voltage sig-
nal to the ECM according to the current value detected.

4

Generator (IC regulator)

The IC regulator controls the power generation voltage by the 
target power generation voltage based on the received PWM 
command signal.
When there is no PWM command signal, the generator per-
forms the normal power generation according to the character-
istic of the IC regulator.

5

Combination meter (charge warning lamp) 

The IC regulator warning function activates to illuminate the 
charge warning lamp if any of the following symptoms occur 
while generator is operating:
·Excessive voltage is produced.
·No voltage is produced. 

CHG

SYSTEM

CHG-7

< SYSTEM DESCRIPTION >

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SYSTEM

CHARGING SYSTEM
CHARGING SYSTEM : System Diagram

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CHARGING SYSTEM : System Description

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The generator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.

The voltage output is controlled by the IC regulator.

CHARGING SYSTEM : Component Description

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Component part

Description

Generator

Terminal “1” 

Refer to 

CHG-23, "Description"

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Terminal “2”

Refer to 

CHG-24, "Description"

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Terminal “3”

Refer to 

CHG-27, "Description"

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Terminal “4” 

Used for the power generation voltage variable control system. 
Refer to 

CHG-8, "System Description"

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Combination meter (Charge warning lamp)

The IC regulator warning function activates to illuminate the 
charge warning lamp if any of the following symptoms occur while 
generator is operating:
• Excessive voltage is produced.
• No voltage is produced.

IPDM E/R

Used for the power generation voltage variable control system. 
Refer to 

CHG-8, "System Description"

.

CHG-8

< SYSTEM DESCRIPTION >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

System Diagram

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System Description

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Power generation variable voltage control system has been adopted. By varying the voltage to the generator,

engine load due to power generation of the generator is reduced and fuel consumption is decreased. 

NOTE:

When any malfunction is detected in the power generation variable voltage control system, power generation

is performed according to the characteristic of the IC regulator in the generator. 

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