The Peugeot iOn is a rear-wheel drive vehicle in which the electric motor and the single-ratio reduction gearbox are installed in front of the rear suspension. The Peugeot iOn is equipped with a new-generation Lithium-ion battery with an energy storage capacity well in excess of the old Ni Cd batteries used in the 1990s (three times more energy per kg or twice as much by unit of volume). While lending itself to tranquil driving, the Peugeot iOn is not lacking in the character and performance. As soon as the need is apparent, use of the accelerator frees up available torque instantly for rapid, linear acceleration. Taking 3.5 seconds to go from 30km/h to 60km/h (compared to 3.9 secs in 3rd in a 207 1.6 litre THP) is evidence of this.
The Peugeot iOn motor is supplied with a 330 V three-phase alternating current (AC) from the inverter which is supplied with a 330 V direct current (DC) from the main battery pack. The inverter regulates the current, frequency and voltage according to the position of the accelerator pedal. The controlled response when the accelerator is pressed has been designed to ensure a good distribution of power when required.
The inverter, the motor and the reduction gearing provides a potential speed range from 0 to 130 kph. The single reduction gear provides an overall ratio of 6.066 in both forward and reverse gears. Reverse gear is obtained by reversing the direction of the motor’s operation. The Neodyme (Nd) synchronous permanent magnet electric motor is particularly compact. With a maximum power of 47 kW.h (64 bhp) it has a maximum torque of 180 Nm from 0 to 2000 rpm.