Steer-by wire system and a method for data exchange in a steer-by-wire system

1. A steer-by-wire system comprising:

a steering actuator control device that controls at least one steering actuator; and

at least one steering handle control device that controls at least one actuator on a steering handle in order to generate a haptic torque, wherein

a sensor system for detecting a steering wheel angle is assigned to the steering handle control device, wherein

the steering actuator control device is connected with a first bus system and the steering handle control device is connected with a second bus system, wherein

a plurality of additional control devices are connected to each of the first and second bus systems,

the two bus systems are connected with each other via a gateway control device,

the steering actuator control device and the steering handle control device are networked with each other to exchange data via the first bus system, the second bus system, and the gateway control device, and

the steering actuator control device and the steering handle control device are additionally connected with each other to exchange data directly via a third bus system.

2. The steer-by-wire system according to claim 1 , wherein the steering handle control device is designed so as to transmit at least data from the sensor system via the gateway control device to the steering actuator control device, wherein at least safety-related data are exchanged between the steering actuator control device and steering handle control device via the third bus system.

3. The steer-by-wire system according to claim 2 , wherein at least the steering actuator control device and the steering actuator as well as the steering handle control device and the sensor system have a redundant voltage supply.

4. The steer-by-wire system according to claim 1 , wherein at least the steering actuator control device and the steering actuator as well as the steering handle control device and the sensor system have a redundant voltage supply.

5. A method for data exchange in a steer-by-wire system, comprising:

using a steering actuator control device that controls at least one steering actuator, and

using a steering handle control device that controls at least one actuator on a steering handle in order to generate a haptic torque, wherein a sensor system for detecting a steering wheel angle is assigned to the steering handle control device, wherein the steering actuator control device is connected with a first bus system and the steering handle control device is connected with a second bus system, wherein a plurality of additional control devices are connected to each of the first and second bus systems, the two bus systems are connected with each other via a gateway control device, the steering actuator control device and the steering handle control device are networked with each other via the first bus system, the second bus system, and the gateway control device, and the steering actuator control device and the steering handle control device are additionally connected with each other to exchange data directly via a third bus system, the method further comprising:

transmitting at least data from the sensor system via the gateway control device to the steering actuator control device; and

exchanging at least safety-related data between the steering actuator control device and the steering handle control device via the third bus system.

6. A computer-implemented method for data exchange in a steer-by-wire system comprising:

using a steering actuator control device that controls at least one steering actuator, and

using a steering handle control device that controls at least one actuator on a steering handle in order to generate a haptic torque, wherein

the system comprises a sensor system for detecting a steering wheel angle, which sensor system is assigned to the steering handle control device, wherein the steering actuator control device is connected with a first bus system and the steering handle control device is connected with a second bus system, wherein a plurality of additional control devices are connected to each of the first and second bus systems, the two bus systems are connected with each other via a gateway control device, the steering actuator control device and the steering handle control device are networked with each other via the first bus system, the second bus system, and the gateway control device, and the steering actuator control device and the steering handle control device are connected with each other to exchange data directly via a third bus system, the method further comprising:

transmitting at least data from the sensor system via the gateway control device to the steering actuator control device; and

exchanging at least safety-related data between the steering actuator control device and the steering handle control device via the third bus system.

7. A non-transitory machine-readable medium including contents that are configured to cause a steer-by-wire system to conduct the method of claim 6 .