At the Paris Motor Show, Valeo introduced another 48V hybrid system, the 48V e4Sport. The new system, which can be applied across all vehicle segments, to both gasoline and diesel engine models, recovers a maximum amount of braking energy and stores it in a 48V battery for various uses, such as increasing engine torque, via the starter-generator, or maximizing engine power during acceleration and boost phases, using the electric supercharger.
The system also supports driving in all-electric mode and, when on low-grip surfaces, improving performance by connecting the rear axle to the 48V eRAD electric rear axle drive, effectively transforming the vehicle into a four-wheel drive.
|Valeo’s 48V roadmap. Click to enlarge.|
The 48C e4Sport system incorporates a 48V integrated belt starter-generator; a 48V electric supercharger; and the 48V electric rear axle drive.
|From the top: Belt Starter Generator; Electric Supercharger; eRAD. Click to enlarge.|
The new system joins other Valeo 48V systems, including Hybrid4All, which delivers an affordable hybrid solution based on the 48V starter-generator, and e4Boost, which combines hybridization and performance by adding the electric supercharger to the starter-generator.
At its investor meeting in Paris, Valeo executives said that the company has more than 25 contracts for 48V systems worldwide (China, Europe, India, Korea), making it the leading provider.
The company plans to introduce the first air-cooled 48V belt starter generator and DC/DC converter next year.