Pedal feel emulator

Pedal Simulator

To enable efficient regenerative braking, the use of a brake-by-wire braking system is necessary. The system separates the hydraulic connection of the driver's master brake cylinder from the brake calipers of the electrically propelled axle. As a result, depending on the negative torque currently available from the traction motor, a hydraulic pressure can be applied by the brake-by-wire system that precisely matches the driver's deceleration request. The result is a maximum of recovered kinetic energy into the battery without the driver noticing by which system the vehicle deceleration is generated.

The hydraulic separation of the driver's pedal from the brake calipers means that the pedal travel is very short, as the volume from the master brake cylinder can no longer be shifted to the brake calipers. This makes it more difficult for the driver to meter the braking force and thus extends the braking distance. To counteract this, LSP has developed a pedal feel emulator. In the active mode of the brake-by-wire braking system, the pedal feel emulator absorbs the displaced volume with a specific stiffness. By precisely tuning the characteristic curve, the driver does not notice any difference whether the volume is absorbed by the brake calipers or the emulator. The result is a consistent and familiar pedal feel that allows the driver to safely operate the vehicle at the limit, allowing the driver to get the maximum performance from the vehicle.

All advantages at a glance
  • Identical replication of the pressure-volume characteristic curve of the customer's vehicle
  • Low package/weight
  • Very good bleeding capability
  • Robust design
  • Low maintenance
Key Data
Parameter Value
Pressure-volume stiffness customized
Max. volume consumption customized
Max. working pressure customized
Max. pressure without damage 200 bar
Hydraulic interface M10 x 1 (input pressure)
M10 x 1 (bleeding)
Mechanic interface 4 x M4
Weight 500 g
IP Protection class IP 64
Ambient temperature +5 … +100°C
Life time 60.000 cycles
Service interval 20.000 cycles or 1 year


Looking for an experienced partner for your project and interested in the pedal simulator or other braking systems that meet the highest standards? We look forward to your inquiry!

Emanuel Wallrapp
Product Manager
Phone: +49 170 2894684