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The domains of powertrain and brake systems are continuously merging due to the integration of electric drives and their ability to generate high acceleration and recuperative torque. However, high recuperative torque might lead to a locking motor and consequently cause a stability issue in electric and hybrid vehicles. This paper focuses on the special case of recuperation by coasting; i.e., the torque request is set after releasing the accelerator pedal. In this case the mechanical brake is not used. For off-highway vehicles this new feature in the inverter will suppress the slipping and locking up of the tires, without the need of additional external sensors. Slipping of the tires, e.g. when the tires lose grip, can occur due to excessive torque from the motor. In this case the motor torque exceeds the minimum feasible deceleration torque, given by road friction.

Developments for innovative systems in engines, hybrid and electrical vehicles are strongly affected by a high pressure on costs, short development cycles and high quality requirements. Therefore within the business unit Powertrain Systems of Bosch Engineering GmbH (BEG) test environments for SW functions in engine control units (ECU) are selected according to cost and efficiency aspects as well as availability. Prototype vehicles are very expensive and cannot always be provided in time by vehicle manufacturers. Closed-loop test systems like hardware-in-the-loop systems (HIL) are alternatives to perform system tests of ECUs in a vehicle simulation. We propose to consider the usage of low-cost solutions with reduced costs in many cases. At the same time due to these saving effects the number of test systems in an organization can be increased significantly. This enhances the availability of testing equipment for engineers.