Mobility Solutions

More safety for vans and trucks New Bosch brake control systems for light commercial vehicles

  • ESP® 9TE improves stability and shortens braking distance of light commercial vehicles with higher gross vehicle weight
  • More dynamic active build-up of pressure possible without additional precharge technology
  • ESP® 9LE for vehicles with high brake pressures
  • Technical basis for extensive range of additional functions
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  • September 18, 2012
  • Mobility Solutions
  • Press releases

press release

Following the launch of ESP® 9 in passenger cars, Bosch is now introducing this new generation also for light commercial vehicles. With ESP® 9TE, a number of additional ESP® functions will now be available for the first time for the weightier segment of light commercial vehicles weighing up to eight metric tons. These functions include brake prefill by bringing the brake pads into position, automatic braking in hazardous situations, and safety interventions on steep gradients. Bosch is planning to start series production in 2014. ESP® 9LE is already being manufactured. It has been optimized above all for the types of van commonly found in Europe, which have high pressures in their main brake cylinders. “With the new varieties of Bosch ESP®, significant improvements to the safety of light commercial vehicles can be made,” said Gerhard Steiger, president of the Bosch Chassis Systems Control division.

Modified to meet the specific demands of commercial vehicles
Vans, sport utility vehicles, and pick-up trucks place greater demands on the brake system due to features such as gross vehicle weight, wheel base, and larger brake calipers. Both the ESP® 9TE and ESP® 9LE have been optimized to meet those demands. Both allow the kind of additional functions, including comfort functions, that are common in the passenger-car segment. In addition, automakers can offer the kind of stability support required specifically for vans. The load adaptive control function, for example, adapts the interventions by the ABS, TCS, and ESP® active safety systems to the respective load status, while roll-over mitigation acts to check roll-over by braking the individual wheels appropriately and reducing torque.

ESP® 9TE is designed above all for the U.S. market. While automakers in Europe tend to rely on compressed air brakes once vehicles exceed a weight of six to seven metric tons, pick-up trucks in the U.S. tend to be braked by larger brake calipers. For such calipers, the ESP® system requires above all a more dynamic active build-up of pressure, with a high delivery rate. What matters here are pump housing and valves optimized for flow, asymmetric pump elements, a powerful motor, and larger storage chambers. There is now no need for the precharge components that were often necessary in the past. Compared with standard ESP® systems, ESP® 9LE is equipped with a motor delivering greater torque, special valves, and larger storage chambers for the high pressures (up to 330 bar) typically found in the main brake cylinders of vans. In addition, it can support recuperative braking in hybrid vehicles, allowing the braking effect of the electric motor to be synchronized with conventional braking action.

ESP® 9 – how it works (YouTube) (Download)
Evasive steering without and with ESP® (YouTube) (Download)
Cornering without and with ESP® (YouTube) (Download)
Load Adaptive Control (YouTube) (Download)
Roll Over Mitigation (YouTube) (Download)

ESP9 TE explained (YouTube) (Download)

Click here to find further information.

Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at www.bosch.com and www.bosch-press.com, http://twitter.com/BoschPresse.

PI7818 - September 18, 2012

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