The GMS DUAL POWERTRAIN

The GMS Dual Power Train is an economical electric drive system that replaces the internal combustion engine for both on and off-road vehicles.

The new "GMS DUAL" drive train is based around the brand new liquid cooled GMS M1 motor which was specially designed to give outstanding performance when used in lightweight family cars or fleet vehicles . At the heart of this electric car package are two high powered controllers, which are matched to the motors and pre-programmed to deliver exceptional flexibility. Although the motors are nominally 36kW, in this configuration the drive train will run continuously at the much higher levels necessary for passenger vehicles and will deliver exceptional peak power for short periods. The complete package comes with all components. Two motors are used within the protected gearing design configuration to deliver a cost effective, energy efficient drive system. This unique dual drive configuration gives direct drive to each wheel on the axle with programmable limited slip capability using our designed EMP (encrypted motor profile) embedded controller software.

(IP and copyright property of Green MotorSport Limited : All rights reserved.) 

Applications include most road vehicles. 

Available in Standard or Sports option

Dual motor system unit        REF : GMS-DUAL-36N

Product Name                       GMS Dual drive motor powertrain system

Power rating                          36kW Nominal.  70 BHP peak, depending on parameters.

Torque                                   300 NM or 221.2 foot pounds at the drive shaft can be obtained.

System Voltage                     48V

System Profile                       Motor, controller, Dual preset profile with electronic differential

Reduction Gearing                3.75:1 more details of the gearbox on request

Regen Braking                      Fully adjustable, pedal release & brake pedal initiation

Materials                               C250 Aluminium

Weight                                   43.5KG (without controllers)

(IP and copyright property of Green MotorSport Limited : All rights reserved.)

Package includes

-Fully assembled and tested DUAL drive power train, including complete gearing.

-Twin AC controller / 700 amps combined rate, ( twin sports controller optional : 1300 amps max. )  ( each  shown  below )*

-Electronic differential : encrypted GMS proprietary profiling software.( EMP ) encrypted motor profile

-Customer handheld programmer,

-Hand brake magnetic communication actuator and magnet

-Regenerative brake pedal sensor

-Dashboard with GMS illuminated snap-fit design dashboard display readout, choice of bar graph, numeric, pointer or needle for display.

-Advanced wiring loom, consisting of  IP68/IP69K  plugs and sockets : (Keyed /Polarized,TPA,&CPA)

-Long run wiring loom extensions are not included in the kit (see details below*)

-Speed sensor, thermal overload motor protection sensor,

-Rugged aluminium cased throttle pedal,

-DC-DC converter (48v-12v) 200 Watt, suitable for all 12v car electrics,

-High current single line contactors (2*350amp breakers or 2*650amp breakers),

-Dual cooling kit : consisting (Two 12v brushless sealless centrifugal IP54 coolant pumps, dual radiator module (below) ( fully sweated cooling fins for performance using saltbath manufacturing ), single 10 inch 12v DC weather proof high performance axial fan, multi bladed stator vanes to cleave the air to ensure maximum performance with reduced operating amperage and lower noise. Technology was based on jet turbine engines. (staticly balanced) (6.2 amps, max, 1170 Airflow meter cubed/Hr at 3.7mm WG static pressure, with  new nylon clamp fittings and mounting clips.), single expansion overflow tank,  low pressure rad caps and cooling relay module.

19 mm coolant hose & 19mm clips are not included in our GMS-Dual package, but can be made available if required.

Dual radiator module size : L:41cm/W:28cm/D:9cm  (.71 litres) ( includes fan blower unit, radcaps & outlets ) ( based on using 5 meters of 19mm coolant hose, total coolant weight = 3.2 KG) 3.19 litres of Propylene Glycol antifreeze to be used, not Ethylene Glycol. Certified coolant must be used in GMS powertrains to meet warranty requirements.

Note: (12v Twin Pump, Weight 560g) 2.5amps, comes with anti vibration mounting brackets.

Single DC-DC converter 

 Mounting bracket / single linebreaker

Dashboard /Display module, illuminated snap-fit design dashboard

Dual Controllers

Note: *  2 controllers are required for the Dual.  (Mounting methods are optional)

350 A 48V GMS Standard controller Left  :  650 A 48V GMS Sports Controller Right

Sensors

Hand brake magnetic actuator and actuator magnet.

The sensor can not be damaged by exposure to sinusoidal vibration levels of up to 20 g’s over the frequency range  of 10 Hz to 1,000 Hz

Programmer

Materials used

Advanced Design and Functionality

• Major performance, operational and system advancements over DC systems.
• High frequency, silent operation from 0-300 Hz.
• 24V – 80V battery systems, 350-650 A RMS 2 minute current ratings.
• Powerful operating system allows parallel processing of vehicle control tasks, motor control tasks, and user
configurable programmable logic.
• Advanced Pulse Width Modulation technology provides efficient use of battery voltage, low motor harmonics, low torque ripple, and minimized switching losses.
• Fully programmable for optimal Dual  system characteristics.
• Built-in battery state-of-charge algorithms and hour meter.
• Field-Programmable

Robust Safety and Reliability

• Fail-Safe power component design.
• Redundant hardware watchdog timers.
• Reverse polarity protection on battery connections.
• Short circuit protection on all output drivers.
• Thermal cutback, warning, and automatic shutdown provide protection to motor system and controller.
• Rugged sealed housing and connectors meet IP65 environmental sealing standards for use in harsh environments.

Plugs and Sockets

The connector system we use is specifically targeted for off-road and heavy duty industrial applications. These connections  are designed to meet the rigorous demands of an industry that requires the highest standards of performance. The connection housings offer a one-piece assembly for both plug and cap which provides protection and durability during cycles. The pins offer a thick and high performance alloy base metal, therefore providing increased strength and resistance to stress relaxation while maintaining current carrying capability. The system has an IP69K rating that allows for flawless operation in the harshest environments. The high protection rating guarantees absolute ingress-resistance, even in applications subject to frequent cleaning processes.

Cooling relay module

Technical update

To avoid problems with interference all the connections between the motor and controller must be no longer than 500mm.

Wiring Loom *

Long run wiring loom extensions are not included in the kit : these are quoted per meter separately.  Distances from each component device are required. ( Cost is separately calculated based on cable length and number of sockets used. For example, cable distance from foot pedal to controller or dashboard to controller. ( Please ask for a component layout measurement diagram, so you can add your cable lengths into the loom specification diagram for a completed quotation.)

 GMS POWERTRAIN STANDARDS

Single purchase cost starts at £7,465.00 + VAT  for the "Standard Dual Powertrain," and for the "Sports version" add £795.00  extra.  Volume costs available shortly.