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Toyota i-Road Concept - Motor Show Geneva 2013

•, Dani Prank

But the i-Road has one very interesting feature, it's new "Active Lean" self-leaning system designed to automatically balance the vehicle when cornering or travelling over rough surfaces.

The vehicle also features an electric drivetrain, which Toyota says provides a range of about 31 miles on a single charge and a top speed of 28 mph.

A lithium-ion battery powers a pair of 2-kilowatt (2.7-horsepower) electric motors driving the front wheels and takes about 3 hours to charge using an ordinary household power outlet.

But it's the Active Lean technology that's the real highlight here.

Designed to offer high levels of stability, safety and comfort, while also allowing virtually anyone to be capable of driving the i-Road, Active Lean uses a lean actuator and gearing mounted above the front suspension member, linked via a yoke to the left and right front wheels.

A computer calculates the required degree of lean based on steering angle, gyro-sensor and vehicle speed information, with the system automatically moving the wheels up and down in opposite directions, applying lean angle to counteract the forces of cornering. The system also operates when the i-Road is being driven in a straight line over rough surfaces. The actuator automatically compensates for changes in the road to keep the body level.

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