Abstract: A method for operating a braking force generator for a motor vehicle having a hydraulic braking system. The braking force generator, in a first working mode, builds up braking force independently, and in a second working mode, builds up braking force to assist the driver. A strategy for operating the braking force generator is adapted depending on a driving situation. A corresponding apparatus is also provided.

Abstract: A method for checking the availability of a hydraulic fallback level in a power brake system with electronic slip control, an electronic control device, and a power brake system with electronic slip control. In normal operation, power brake systems perform braking procedures without a driver participating in building up braking pressure. A requirement for braking is detected by an electronic control device and associated with a braking pressure which is set by electrical control of the drive of a primary pressure generator. Power brake systems are often equipped with a secondary pressure generator, connected with the wheel brakes, in parallel with the primary pressure generator, which can be used to perform the building up of pressure at a hydraulic fallback level. For safety reasons, the availability of the hydraulic fallback level is checked at particular time intervals during normal braking operation of the power brake system.

Abstract: A method for ascertaining an available fluid volume in a tank for brake fluid of a braking system. The braking system includes a pressure generator fluidically connected to the tank on the one hand and to at least one brake circuit on the other hand, which is activatable for generating a hydraulic pressure in the braking system as brake fluid is withdrawn from the tank. A drop below a predefined limiting value for a fill level of the brake fluid in the tank is monitored with the aid of a binary sensor assigned to the tank. It is provided that an actuation of the pressure generator is monitored and that the available fluid volume is ascertained as a function of the actuation of the pressure generator when the instantaneous fill level drops below the limiting value.

Abstract: A method for ascertaining an available fluid volume in a tank for brake fluid of a braking system. The braking system includes a pressure generator fluidically connected to the tank on the one hand and to at least one brake circuit on the other hand, which is activatable for generating a hydraulic pressure in the braking system as brake fluid is withdrawn from the tank. A drop below a predefined limiting value for a fill level of the brake fluid in the tank is monitored with the aid of a binary sensor assigned to the tank. It is provided that an actuation of the pressure generator is monitored and that the available fluid volume is ascertained as a function of the actuation of the pressure generator when the instantaneous fill level drops below the limiting value.

Abstract: A device and to a method for controlling a highly automated vehicle, as well as a portable unit for remotely controlling the highly automated vehicle, the highly automated vehicle being able to independently carry out driving maneuvers without the intervention of the driver or a vehicle occupant. The device for controlling is connected to the portable unit. The device for controlling receives a signal from the portable unit that the portable unit has detected a dropping by the vehicle driver or a vehicle occupant. Upon detection of a free fall, the presently independently carried out driving maneuver is automatically aborted or terminated.

Abstract: A method for operating a braking force generator for a motor vehicle having a hydraulic braking system. The braking force generator, in a first working mode, builds up braking force independently, and in a second working mode, builds up braking force to assist the driver. A strategy for operating the braking force generator is adapted depending on a driving situation. A corresponding apparatus is also provided.