Up to 6,000 Newton meters of torque and 300 kilowatts of power
The e-axle’s USP is its high level of versatility, which means it can be adapted to many types of vehicles. “Instead of reams of specifications, a few parameters are enough for Bosch to customize the e-axle,” says Dr. Mathias Pillin, the executive vice president for electromobility. All the customer has to do is state what performance, torque, and installation space they require, and Bosch then optimizes the rest of the powertrain to fit these parameters. In this way, a complete, customized powertrain can be delivered directly to an automaker’s assembly line. This is a further reason why the Bosch electric axle is the next logical step for powertrain engineering.
The powertrain can deliver between 50 and 300 kilowatts, and is therefore also capable of powering large vehicles such as SUVs completely electrically. Torque at the vehicle axle can range from 1,000 to 6,000 Newton meters. When installed in hybrid and electric vehicles, front- and rear-axle drive is possible. An electric axle delivering 150 kilowatts weighs roughly 90 kilograms, and thus far less than the combined individual components used so far. Compared with competing products, the distinguishing feature of the Bosch electric axle is an especially high peak performance combined with a high level of continuous performance. In other words, the electrical powertrain can accelerate better and maintain a high speed for a longer period. To achieve this, Bosch has not only redesigned the system as a whole, but also improved the motor and power electronics components.