E-TERRAIN TECHNOLOGIES
Land Rover engineers are working on initiatives for a sustainable future. Collectively named e_TERRAIN TECHNOLOGIES, these include advanced engineering such as Electric Rear Axle Drive (ERAD) and a Crank Integrated Starter Generator (CISG) as well as a Diesel Hybrid engineering evaluation vehicle which is part of a joint research project between Land Rover and the UK Government’s Energy Saving Trust.
The Diesel ERAD Hybrids include a potential next-generation version of Land Rover’s award-winning Terrain Response system, which helps the driver gain maximum advantage from the hybrid technology as well as delivering unsurpassed all-terrain performance.
e-Terrain Response
There are five basic modes: Eco Dynamic, Grass/Gravel/Snow; Mud and Ruts, Sand;
Eco Programme
Eco is used for much of the normal driving cycle, and it allows the vehicle to select electric or diesel power as conditions demand
Maximum benefit, with no tailpipe emissions, is delivered during low speed 'creeping' in urban traffic; the diesel engine is automatically switched off & the ERAD drives the rear wheels.
Dynamic Programme
This setting is for open road, steady-speed use where moderate acceleration is required. The diesel engine drives the front wheels, with the engine mapping optimised for maximum fuel economy.
Four wheel drive traction is available instantaneously when required, for example if the driver wants to overtake, the engine and electric drives work together to optimise power and torque delivery.
Grass, Gravel, Snow programme
This setting is designed to deliver maximum traction by using minimum torque, avoiding waste energy from wheelspin. The vehicle is launched in four wheel-drive under electric power only via the ERAD and the diesel engine starts only when needed. Using the electric drive in this way allows very fine control of torque, maximises traction while minimising CO2 emissions.
Mud and Ruts programme
There are two options in this mode, low torque with a four wheel-drive launch from standstill under electric power only or high power and torque delivered by the diesel engine with electric assist for greater slip control and power response.
Sand Programme
This is the ‘high-power’ off-road setting, appropriate for energy-sapping surfaces such as loose sand. The engine is boosted by the ERAD electric drive, delivering power over and above the capacity of the diesel engine alone.
