Club Car Gasoline Service Manual page 405

DYNAMIC BRAKING SOLENOID CONTROL CIRCUIT (FIGURE 21-13)
The Dynamic Braking Control Circuit directs the current that is generated by the motor to either the batteries
or the dynamic braking resistor coil (energy displacement module). When the batteries are at or near full
charge, the dynamic braking solenoid will shut off when the motor is generating energy, sending the current
to the resistor coil. After the batteries have discharged to the point that they can accept a regenerative
charge, the dynamic braking solenoid will stay on when the motor is generating energy, sending current
directly to the batteries.
The Dynamic Braking Solenoid Activating Coil Circuit consists of:
• The D.B. solenoid activating coil.
• The 18 gauge red wire from the small post of the main solenoid to the small post of the dynamic brak-
ing solenoid.
• The key switch.
• The potentiometer limit switch
• The dynamic braking transistor located in the Z5 Z plug/controller position.
• The forward and reverse rocker switch.
• The connecting wires
When the key switch is in the ON position, the forward and reverse switch is in forward or reverse, and the
accelerator pedal is depressed, the Z5 transistor completes the circuit to the DB solenoid activating coil and
closes the power contacts.
ON-BOARD COMPUTER (OBC) CONTROL CIRCUIT (FIGURE 21-14, PAGE 21-14)
The On-board Computer performs the following functions:
• Monitors battery energy units (EU) consumed as the vehicle is operated.
• Monitors battery energy units returned by regenerative braking.
• Determines the number of energy units that need to be returned during the charge cycle. The OBC will
activate the charger, monitor the number of energy units returned to the batteries during the charge
cycle, and shut off the charger when the batteries have reached a full state of charge.
Z5
FIGURE 21-13
21A
E
Page 21-13