Brake device for a vehicle and method for operating a brake device for a vehicle

A brake device for a vehicle. The brake device includes a controller, which is connected to a brake actuator device. The controller is configured to ascertain an operating state of an electric machine in generator mode and a second brake torque, which can be generated by the electric machine, and to operate the brake actuator device in generator mode as a function of the operating state. A specified total brake torque on the vehicle can be generated as the sum of the second brake torque and a first brake torque of the brake actuator device. The controller is configured to reduce or increase the generated first brake torque of the brake actuator device to maintain a specified value range of an operating parameter of the brake actuator device and/or to provide, together with the second brake torque, at least the specified total brake torque on the vehicle.