2013 Land Rover Defender Electric Concept Engine and Gallery

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Land Rover is continuing to champion British innovation and cutting-edge automotive engineering by unveiling seven new Electric Defender models at the 2013 Geneva Motor Show. The research vehicle delivers zero emissions while retaining its tough, go-anywhere capability.

Land Rover Defender Electric Concept 2013

The 2013 Land Rover Defender Electric Concept standard diesel engine and gearbox have been replaced by a 70kW (94bhp), 330Nm electric motor twinned with a 300-volt, lithium-ion battery with a capacity of 27kWh, giving a range of more than 50 miles. In typical, low speed off-road use it can last for up to eight hours before recharging. The battery can be fully charged by a 7kW fast charger in four hours, or a portable 3kW charger in 10 hours.

The 2013 Land Rover Defender Electric Concept vehicles (EVs) retain the Defender’s legendary four-wheel drive system and differential lock. Because the electric motor delivers maximum torque from the moment it starts, there’s no need for gear shifting and the transmission comprises a single speed, 2.7:1 reduction gearbox combined with the existing Defender four-wheel drive system. A modified version of Land Rover’s Terrain Response® System has also been incorporated.

2013 Land Rover Defender Electric Concept Engine

The vehicles were developed by Land Rover’s Advanced Engineering Team following successful trials of the Defender-based electric vehicle, Leopard 1. The vehicles’ capability has been tested in extreme and environmentally sensitive conditions, demonstrating capabilities not shared by conventional road-going EVs. Trials included pulling a 12-tonne ‘road train’ up a 13 percent gradient and wading to a depth of 800mm.

The 2013 Land Rover Defender Electric Concept battery weighs 410kg and is mounted in the front of the Defender in place of the diesel engine. Kerb weight is 100kg more than a basic Defender 110 and ranges from 2055kg to 2162kg depending whether the body style is a pick-up, hard top or station wagon.

All the major components in the electric powertrain – including the battery, inverter and motor – are air-cooled rather than liquid cooled, saving a considerable amount of weight and complexity and adding robustness. Regenerative braking has been optimised to such an extent that using Hill Descent Control, the motor can generate 30kW of electricity. Because the battery technology can be charged very quickly at a rate of up to twice its capacity of 54kW without reducing battery life, almost all of the regenerated energy can be recovered and stored. Up to 80 percent of the kinetic energy in the vehicle can be recovered in this way, depending on conditions.

Although there are no plans for the all-terrain Electric Defender to enter series production, the seven EVs will go into service in specialist applications later in 2013.

2013 Land Rover Defender Electric Concept Gallery