Vehicle, in particular a hybrid vehicle

摘要

A vehicle has a drive unit driving wheels of a vehicle axle and braking the vehicle via a drive train in drag mode, an electronic control unit measuring actual wheel rotational speeds of the wheels, and a brake booster for reducing the actuating force at the brake pedal. A test unit is assigned to the electronic control unit and performs a plausibility check of the actual wheel rotational speeds in drag mode, wherein the test unit activates during the plausibility check the vehicle brake of one of the vehicle wheels and detects, from the rotational speed behavior of the wheel with a non-activated vehicle brake, whether the measured actual wheel rotational speeds correlate with the actual vehicle speed. A brake booster can be actuated by the test unit during the plausibility check in order to activate the vehicle brake.

主权项

1. A vehicle, comprising:
at least one drive unit configured to drive at least the vehicle wheels of a vehicle axle and to brake the vehicle in drag operation via drive train, an electronic control unit configured to measure as input parameters actual wheel rotation speeds of the vehicle wheels, a brake booster for reducing an actuating force of a brake pedal, and a test unit associated with the electronic control unit and in signal communication with the brake booster, wherein the test unit performs in drag operation a plausibility check of the measured actual wheel rotation speeds and activates a vehicle brake of one of the vehicle wheels based on a result of the plausibility check and detects based on the speed characteristics of another vehicle wheel with a non-activated vehicle brake whether the measured actual wheel rotation speeds correlate with an actual vehicle speed.