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Going the Distance – the road to the LMDh hybrid system

For the new Le Mans Daytona hybrid (LMDh) prototypes, it all begins with a flying start at the Rolex 24 At Daytona in late January 2023. As the race gets rolling, the engineers and technicians of Bosch Motorsport will already have finished their own endurance race. It all started in 2019 when an order was placed for developing a uniform hybrid drive system for all race cars. Bosch Motorsport also acts as the overall system integrator. After less than three years, a pandemic, and several thousand hours of work, the highly complex prototypes are lining up for the actual start. In "Going the Distance," the core team at Bosch Motorsport gives us a unique look behind the scenes just a few weeks before the season opener.

Episode 1: setting the scale

The LMDh concept is anything but an ordinary development project for the world of racing. Naturally, this requires a special commitment and an equally special team. In the first episode, meet the people behind the system as they talk about the project's history and how important it is to motorsports and to them personally.

The team with more endurance: a core team of 50 people at Bosch Motorsport worked on the project, with additional support from a wide range of specialist departments from the entire Bosch Mobility Solutions business sector.

Jacob Bergenske, Director of Bosch Motorsport North America

From a technical standpoint, what we developed was a hybrid system for these race cars. But what we really developed was a high-performing team.

Jacob Bergenske, Director of Bosch Motorsport North America

Episode 2: Setbacks and Go-Aheads

Anything can happen in motorsport – and development is no different. But as in life, it's not about how many times you fall down, but how many times you get back up. That's the spirit of endurance racing.

In Episode 2, the team talks about the ups and downs during development and what drives them to keep going.

Development marathon: Destination Daytona

There's nothing like hands-on testing. But test drives on real racetracks are time-consuming and expensive. On top of that, no drivable prototype is available at the start of system development. So how can you ensure that the components are up to the mammoth task of a 24-hour race? By putting an equally mammoth amount of effort into development. What also helps is: the best equipment, a lot of experience and even more passion, tenacity and perseverance.

The Bosch Motorsport team had all of this in store. From the initial theoretical planning and simulations, test bench and shaker tests to real driving trials, they fought their way from milestone to milestone – like the first fire-up of the fully integrated system in the race car. Now the final days of testing were on the agenda before the season opener at the Rolex 24 at Daytona. Will the team successfully bring the three-year development marathon across the finish line?

Check back later for episode 3

The team has landed in Daytona. Now it's down to business. All the manufacturers are on site to put their prototypes to the test. Will it all go as planned?

More about the LMDh hybrid system

More about the LMDh hybrid system

If you want to discover more about the hybrid system, you've come to the right place.