The Propulsion, Energy Storage and Charging System of the New Opel Corsa-e

Abstract

Various forms of electric mobility contribute to the target of decarbonizing the traffic sector. Depending on the energy source for charging of Electric Vehicles (EVs), the CO2 reduction contribution for Battery-EV (BEV) and Plugin-Hybrid EV (PHEV) cars differ, same as the emissions for electricity production differ by country. Once BEV and PHEV cars are stronger represented in the passenger car fleets, societies will take further benefit from progress in de-carbonization of the energy sector through this growing, coupled lever in the traffic sector. The new Corsa-e marks another milestone of EVs in the Opel product lineup. Other than the well-known, roomier Ampera-e, the Corsa-e is more clearly placed in the B-segment. It will make electric mobility more affordable for a wider customer range. Besides an enthusing exterior and interior design, great drivability and class-leading charging capability were key development targets. This paper describes how EV Functionality was maintained and improved subsequent to the Ampera-e. High Voltage (HV) architecture design simplifications were brought in place. Commonality leverage with the “Corsa” sister model as well as manufacturing insourcing within the corporation were employed to widen the affordability of this car to a broader customer area. With approx. 330 km in WLTP (preliminary figure), further optimized roadload for motorway driving and DCFC charging up to 100 kW peak, the car provides a perfect balance of Battery size even for longer distance usage. Details on the major HV Powertrain components are compared to the Ampera-e as reference. Key functions related to electrical driving and charging are explained, supplemented by performance data. The paper also compares charging options and delivers charge recommendations for different types of EVs, including the BEV vehicles, like the Corsa-e.