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US 12,683,884 B2Granted
System and method for simulation and testing of multiple virtual ECUs
AssigneeSiemens Industry Software Inc.
InventorsKeroles Khalil, Magdy Aly Aly Elmorsy
Life of this patent
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Abstract
Systems and methods for simulation and testing of multiple virtual electronic control units (VECUs). A method (1000) includes executing, by one or more computer systems (101), a first VECU (502). The method includes executing a virtual bus (510), the virtual bus (510) associated with the first VECU (502). The method includes executing at least one second VECU. The method includes simulating a multiple-VECU system by managing communications, using the virtual bus (510), between the first VECU (502) and the at least one second VECU.
Claims13
A method comprising:
- executing, by one or more computer systems, a first virtual electronic control unit (VECU) and at least one second VECU;
- executing, by the one or more computer systems, a virtual bus associated with the first VECU and the at least one second VECU, wherein the virtual bus includes a data exchange channel and a synchronization channel configured to enable communication between the first VECU and the at least one second VECU;
- simulating, by the one or more computer systems, a multiple-VECU system by managing communications, using the virtual bus, between the first VECU and the at least one second VECU;
- synchronizing, by the one or more computer systems, execution of the first VECU and the at least one second VECU using the virtual bus by sending a synchronization message from the first VECU over the synchronization channel of the virtual bus to the at least one second VECU, causing the at least one second VECU to advance execution by a predetermined virtual simulation time, wherein, in response to receiving the synchronization message over the synchronization channel of the virtual bus, the at least one second VECU transmits an acknowledgement message over the synchronization channel of the virtual bus to the first VECU, wherein the acknowledgement message confirms the at least one second VECU received the synchronization message from the first VECU, and wherein the first VECU advances execution to synchronize with the at least one second VECU in response to receiving the acknowledgement message from the at least one second VECU;
- and
- after the first VECU has been synchronized with the at least one second VECU in response to the synchronization message and the acknowledgment message, transmitting, by the one or more computing systems, messages from the first VECU and the at least one second VECU over the data exchange channel of the virtual bus, wherein the virtual bus is configured to simulate collisions between the transmitted messages and arbitrate between the messages having collided.
3 more elements
One or more computer systems, each comprising:
- a processor;
- and
- an accessible memory, the one or more computer systems together configured to:
- execute a first virtual electronic control unit (VECU) and at least one second VECU;
- execute a virtual bus, the virtual bus associated with the first VECU and the at least one second VECU, wherein the virtual bus includes a data exchange channel and a synchronization channel configured to enable communication between the first VECU and the at least one second VECU;
- simulate a multiple-VECU system by managing communications, using the virtual bus, between the first VECU and the at least one second VECU;
- synchronize execution of the first VECU and the at least one second VECU using the virtual bus by sending a synchronization message from the first VECU over the synchronization channel of the virtual bus to the at least one second VECU, causing the at least one second VECU to advance execution by a predetermined virtual simulation time, wherein, in response to receiving the synchronization message over the synchronization channel of the virtual bus, the at least one second VECU transmits an acknowledgement message over the synchronization channel of the virtual bus to the first VECU, wherein the acknowledgement message confirms the at least one second VECU received the synchronization message from the first VECU, and wherein the first VECU advances execution to synchronize with the at least one second VECU in response to receiving the acknowledgement message from the at least one second VECU;
- and
- after the first VECU has been synchronized with the at least one second VECU in response to the synchronization message and the acknowledgment message, transmit messages from the first VECU and the at least one second VECU over the data exchange channel of the virtual bus, wherein the virtual bus is configured to simulate collisions between the transmitted messages and arbitrate between the messages having collided.
6 more elements
An apparatus comprising a non-transitory computer-readable medium storing executable instructions that, when executed, cause one or more computer systems to:
- execute a first virtual electronic control unit (VECU) and at least one second VECU;
- execute a virtual bus, the virtual bus associated with the first VECU and the at least one second VECU, wherein the virtual bus includes a data exchange channel and a synchronization channel configured to enable communication between the first VECU and the at least one second VECU;
- simulate a multiple-VECU system by managing communications, using the virtual bus, between the first VECU and the at least one second VECU;
- synchronize execution of the first VECU and the at least one second VECU using the virtual bus by sending a synchronization message from the first VECU over the synchronization channel of the virtual bus to the at least one second VECU, causing the at least one second VECU to advance execution by a predetermined virtual simulation time, wherein, in response to receiving the synchronization message over the synchronization channel of the virtual bus, the at least one second VECU transmits an acknowledgement message over the synchronization channel of the virtual bus to the first VECU, wherein the acknowledgement message confirms the at least one second VECU received the synchronization message from the first VECU, and wherein the first VECU advances execution to synchronize with the at least one second VECU in response to receiving the acknowledgement message from the at least one second VECU;
- and
- after the first VECU has been synchronized with the at least one second VECU in response to the synchronization message and the acknowledgment message, transmit messages from the first VECU and the at least one second VECU over the data exchange channel of the virtual bus, wherein the virtual bus is configured to simulate collisions between the transmitted messages and arbitrate between the messages having collided.
3 more elements
Dependencies are inferred from the claim text.