US 11,989,151 B2
Transceiver device and communication control device for a user station of a serial bus system, and method for communicating in a serial bus system
Arthur Mutter, Neuhausen (DE); Florian Hartwich, Reutlingen (DE); and Steffen Walker, Reutlingen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 17/792,186
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Jan. 18, 2021, PCT No. PCT/EP2021/050943
§ 371(c)(1), (2) Date Jul. 12, 2022,
PCT Pub. No. WO2021/148351, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 10 2020 200 804.3 (DE), filed on Jan. 23, 2020.
Prior Publication US 2023/0049285 A1, Feb. 16, 2023
Int. Cl. G06F 13/42 (2006.01); G06F 13/40 (2006.01)
CPC G06F 13/4282 (2013.01) [G06F 13/4022 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A transceiver device for a user station of a serial bus system, the transceiver device comprising:
a first terminal configured to receive a transmission signal from a communication control device;
a transmission module configured to transmit the transmission signal onto a bus of the bus system, in which bus system at least one first communication phase and one second communication phase are used for exchanging messages between user stations of the bus system;
a reception module configured to receive a signal from the bus, the reception module being configured to generate a digital reception signal from the signal received from the bus;
a second terminal configured to send the digital reception signal to the communication control device and to receive an operating mode changeover signal from the communication control device; and
a changeover feedback block configured to output feedback regarding a changeover of an operating mode that has taken place as a result of the operating mode changeover signal, the changeover feedback block being configured to output the feedback to the communication control device via the second terminal and in the digital reception signal.
 
14. A communication control device for a user station of a serial bus system, comprising:
a communication control module configured to generate a transmission signal for controlling a communication of the user station with at least one other user station of the bus system, in which bus system at least one first communication phase and one second communication phase are used for exchanging messages between user stations of the bus system;
a first terminal configured to send the transmission signal to a transceiver device which is configured to transmit the transmission signal onto a bus of the bus system; and
a second terminal configured to receive a digital reception signal from the transceiver device;
wherein the communication control device is configured to generate an additional signal that indicates to the transceiver device that a switch is to be made from a present operating mode into another operating mode of at least three different operating modes, and that achieves an internal communication between the communication control module and the transceiver device, and the communication control module is configured to send the additional signal, in the digital reception signal, to the transceiver device via the second terminal, and to receive, via the second terminal, feedback in the digital reception signal from the transceiver device regarding a changeover of the operating mode that has taken place as a result of the additional signal, and to evaluate the feedback.
 
15. A bus system, comprising:
a bus; and
at least two user stations that are connected to one another via the bus in such a way that they may communicate serially with one another, and of which at least one of the user stations includes:
a communication control device,
a first terminal configured to receive a transmission signal from the communication control device,
a transmission module configured to transmit the transmission signal onto a bus of the bus system, in which bus system at least one first communication phase and one second communication phase are used for exchanging messages between user stations of the bus system,
a reception module configured to receive a signal from the bus, the reception module being configured to generate a digital reception signal from the signal received from the bus,
a second terminal configured to send the digital reception signal to the communication control device and to receive an operating mode changeover signal from the communication control device, and
a changeover feedback block configured to output feedback regarding a changeover of an operating mode that has taken place as a result of the operating mode changeover signal, the changeover feedback block being configured to output the feedback to the communication control device via the second terminal and in the digital reception signal.
 
16. A method for communicating in a serial bus system, the method being carried out using a transceiver device for a user station of a bus system, in which at least one first communication phase and one second communication phase are used for exchanging messages between user stations of the bus system, each user station including a transmission module, a reception module, a changeover feedback block, a first terminal, and a second terminal, and the method comprising the following steps:
receiving, via the reception module, a signal from the bus of the bus system;
generating, via the reception module, a digital reception signal from the signal received from the bus and outputting the digital reception signal to the second terminal; and
outputting, via the changeover feedback block, feedback regarding a changeover of an operating mode that has taken place based on an operating mode changeover signal, the changeover feedback block outputting the feedback to the communication control device via the second terminal and in the digital reception signal.