Green Motorsport - The GMS DUAL

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 drive configuration gives direct drive to each wheel on the axle with programmable limited slip capability.

Applications include most road vehicles.

Available in Standard or Sports option

Specification

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 50KG

Dual drive shown on the (left) with twin 1300amp controller : Dual drive shown (right) without controllers

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 using GMS proprietary profiling software.

-Customer handheld programmer,

-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 connections required. (Keyed /Polarized,TPA,&CPA)

-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 ( includes fan blower unit, radcaps & outlets )

Coolant Pumps

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)

2*350 amp (left)= 700amps or 2*650 amp (right)= 1300amps controllers.

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

Programmer

Materials used

C250 Aluminium is manufactured from a 5083 type alloy. Casting and heat treatment techniques makes the material extremely stress free whilst retaining 85 -90% of the strength of rolled plate. It will retain its dimensional tolerances after machining or even after repeated heating and cooling.

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 connentions 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.

Constant-Velocity Joints

Meets or complies with relevant US and International Regulations

Dual AC Motor Speed Controllers are designed to meet:
EN 50081-1-2, EN 61000-6-2, EN 12895, EN 1175, IP65 Rated per IEC 529
UL Recognized Component Status, UL 583

DC low loss cables can be supplied if required as add-ons. Main wiring loom extensions can also be supplied as add-ons. Drive shafts and couplings, constant velocity joints can also be supplied for any vehicle type. Please ask for a selection of common drive connection components suitable for the Dual that have been identified for your convenience. Please ask about those components suitable for your vehicle type. *More details coming shortly.

Availability 6 weeks from placing the order. Please Note : All powertrains are built to order to meet customer specific requirements, but delivery is confidently expected to be no more than 6 weeks. Please email us for a shipping quote. Full engineering drawings are now available. All product information and prices subject to change without notice. Please contact us.

Single purchase cost starts at �6,795.00 + VAT for the "Standard Dual Powertrain," and for the "Sports version" add �695.00 extra. Volume costs available shortly.

For single motor kits please see our M1 kit.