Features - Club Car Carryall 550 2015 Maintenance And Service Manual

12
General Information
• New B- wire assembly, which replaces the one integral to the onboard computer (OBC). With the OBC gone, the
new B- wire assembly is needed to connect the B- terminal of the controller to the negative (-) post of battery no. 8
(8 x 6-Volt battery set).
• New battery charge indicator light in the instrument panel. This light is an LED and is used to confirm when a charge
cycle begins and when the battery pack has reached a low state of charge.
• A new controller is used that has data collecting functions previously performed by the OBC. Pin 22 in the 24-pin
connector is now utilized to operate the charge indicator light in the instrument panel.
• The controller tracks amp-hour usage for fleet management and warranty administration.
• No Communication Display Module (CDM) required. Use only the IQ Display Module (CDT).
• The CDT will remain ON for approximately 10 minutes when the charger is connected.
• Improved charger and battery state of charge (SoC) status indication.
• Battery charger algorithm can be changed in the field instead of changing an onboard computer (OBC).
• B+ red wire of charger wire harness connects directly to the solenoid to reduce potential corrosion.

FEATURES

• Shunt-Wound Motor: The shunt-wound motor, unlike a series motor, is designed so that the speed controller is
able to vary the amount of current passing through the field coils independently from the current passing through
the armature.
• Motor Braking: Under certain conditions a shunt-wound motor also has the ability to act as an electrical brake to
slow the vehicle. There are three features of the IQ Plus electrical system which will activate the motor braking
function: Walk Away Braking, Pedal Down Motor Braking, and Pedal Up Motor Braking (adjustable with the CDT
handset).
• Walk Away Braking: the walk away braking feature will prevent the vehicle from rolling at more than 1 or 3 mph
(1.5 or 4.8 km/h) unless the accelerator is pressed. This prevents the possibility of a parked vehicle (with the park
brake disengaged) rolling away too fast to be overtaken on foot. If the walk away braking function remains engaged
for two seconds or more, a warning buzzer will sound to alert the driver that motor braking has been activated.
WARNING
• Walk away braking will not limit vehicle speed to 1 mph (1.6 km/h) on very steep grades. Do not
operate vehicle on slopes exceeding 20% grades.
• Pedal Down Motor Braking: This feature helps to control vehicle downhill speed. Motor braking is activated when
the vehicle reaches the programmed top speed and holds the vehicle at that speed. Motor braking is automatically
disengaged when vehicle speed slows below the programmed top speed.
• Pedal Up Motor Braking (adjustable): Speed settings are programmable for IQ Plus vehicles. Motor braking is
activated when the accelerator pedal is released at or above the programmed speed. When the vehicle slows to
the programmed lower speed, motor braking will disengage. If no speed settings are programmed, motor braking
will be activated at any time accelerator is released, and it will only disengage when the vehicle comes to a stop.
Contact your Club Car dealer/distributor to inquire about this programmable feature.
• Regenerative Braking: When motor braking is activated, the vehicle motor acts as a generator, slowing the vehicle
as it creates energy that is used to charge the batteries.
• Tow/Run Switch: When the Tow/Run switch is in the RUN position, the vehicle will function normally. When the
switch is in the TOW position, power to the OBC and controller is shut off, disabling the vehicle operating circuit and
walk away braking, allowing the vehicle to be towed.
Page 12-2 2015 Carryall 550 Maintenance and Service Manual
ELECTRICAL SYSTEM TROUBLESHOOTING:
IQ PLUS ELECTRIC VEHICLES