Vehicle corner modules and vehicles comprising them

Patent metadata

Field	Value
Publication number	US-11654987-B2
Application number	US-202217964948-A
Country	US
Kind code	B2
Filing date	Oct 13, 2022
Priority date	Jan 2, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A vehicle corner module (VCM) is provided for regulating motion of a host vehicle which comprises a vehicle-onboard vehicle-controller. The VCM comprises a sub-frame mountable to a reference frame of the host vehicle; a wheel-hub assembly comprising a wheel-hub; VCM-sub-systems mediating between the sub-frame and the wheel-hub assembly, e.g., a drive subsystem, a steering subsystem, a suspension subsystem and/or a braking subsystem; and an VCM-onboard VCM-controller, comprising one or more processors and a computer-readable medium storing program instructions that, when executed by the one or more processors, cause the one or more processors to establish a communication link with a vehicle-controller, including electronically transferring information about the VCM from the VCM-controller to the vehicle-controller, and to perform, in response to an installation of the VCM on a vehicle, a post-installation validation-process that includes validating the VCM-subsystems and communicating a result of the validating to the vehicle-controller.

First claim

The invention claimed is:

1. A vehicle corner module (VCM) for regulating motion of a host vehicle, the vehicle comprising a vehicle-onboard vehicle-controller, the VCM comprising:
a. a sub-frame mountable to a reference frame of the host vehicle;
b. a wheel-hub assembly comprising a wheel-hub;
c. a plurality of sub-systems mediating between the sub-frame and the wheel-hub assembly, the plurality of subsystems selected from the group of subsystems consisting of a drive subsystem, a steering subsystem, a suspension subsystem and a braking subsystem; and
d. an VCM-onboard VCM-controller, comprising one or more processors and a computer-readable medium storing program instructions that, when executed by the one or more processors, cause the one or more processors to establish a communication link with the vehicle-controller, wherein the establishing includes electronically transferring information about the VCM from the VCM-controller to the vehicle-controller, and
wherein the information about the VCM includes results of a self-diagnostic test carried out before the installation.

2. Apparatus for testing of a VCM according to claim 1 when the VCM is mechanically decoupled from any vehicle, the apparatus comprising:
a. a support element for at least partly supporting the weight of the sub-frame and for constraining movement of the sub-frame;
b. at least one diagnostic device for measuring operational data of at least one of the plurality of subsystems, and
c. a computing device configured to communicate with the VCM-controller and receive therefrom diagnostic information related to the offline testing,
wherein the testing includes a functional test of at least one of the plurality of subsystems.

3. The VCM of claim 1 , wherein the self-diagnostic test was performed using a testing apparatus.

4. An apparatus for testing of a vehicle control module (VCM) when the VCM is mechanically decoupled from any vehicle, the VCM comprising a sub-frame mountable to a reference frame of a vehicle, a wheel-hub assembly, a VCM-onboard VCM-controller, and plurality of subsystems residing onboard the VCM to mediate between the sub-frame and the wheel-hub assembly, the subsystems selected from the group of subsystems consisting of a drive subsystem, a steering subsystem, a suspension subsystem and a braking subsystem, the apparatus comprising:
a. a support element for at least partly supporting the weight of the sub-frame and for constraining movement of the sub-frame;
b. at least one diagnostic device for measuring operational data of at least one of the plurality of subsystems, and
c. a computing device configured to communicate with the VCM- controller and receive therefrom diagnostic information related to the offline testing,
wherein the testing includes a functional test of at least one of the plurality of subsystems.

5. The apparatus of claim 4 , wherein the computing device is additionally configured (i) to receive diagnostic information related to the testing from the at least one diagnostic device and (ii) combine diagnostic information received from the at least one diagnostic device with diagnostic information received from the VCM-controller.

6. The apparatus of claim 4 , wherein at least one parameter of the testing is selected by the VCM-controller.

7. The apparatus of claim 4 , wherein the at least one diagnostic device includes a chassis dynamometer.

8. The apparatus of claim 4 , wherein the apparatus is configured to emulate a full connection of a VCM to an operative vehicle, the emulation including injection of test signals to the tested VCM.

9. The apparatus of claim 4 , wherein the functional test of at least one of the plurality of subsystems includes a test of two or more of the subsystems in an operational scenario involving combined operations of the subsystems.

10. A vehicle corner module (VCM) for regulating motion of a host vehicle, the VCM comprising:
a. a sub-frame mountable to a reference frame of the host vehicle;
b. a wheel-hub assembly comprising a wheel-hub;
c. a plurality of sub-systems mediating between the sub-frame and the wheel-hub assembly, the plurality of subsystems selected from the group of subsystems consisting of a drive subsystem, a steering subsystem, a suspension subsystem and a braking subsystem; and
d. an VCM-onboard VCM-controller, comprising one or more processors and a computer-readable medium storing program instructions that, when executed by the one or more processors, cause the one or more processors to perform, in response to an installation of the VCM on a vehicle, a post-mounting calibration process that includes updating one or more VCM parameters in accordance with one or more updated parameters of the vehicle.

11. The VCM of claim 10 , wherein the one or more updated VCM parameters includes a wheel orientation parameter selected from camber, caster, and toe angle.

12. The VCM of claim 10 , wherein the one or more updated VCM parameters includes a braking subsystem parameter.

13. A storage unit for a vehicle corner module (VCM), the VCM comprising a mountable sub-frame mountable, a wheel-hub assembly, a VCM-controller, and plurality of subsystems residing onboard the VCM to mediate between the sub-frame and the wheel-hub assembly, the subsystems selected from the group of subsystems consisting of a drive subsystem, a steering subsystem, a suspension subsystem and a braking subsystem, the storage unit comprising:
a. one or more mechanical mounts adapted to support the weight of the VCM within the storage unit;
b. a storage-unit controller programmed to perform health tests on a VCM stored within the storage unit;
c. one or more sensors, each one selected from: a vibration sensor, a mechanical load sensor, and a mechanical moment sensor; and
d. a local interface device configured to provide VCM test results and/or enable control of test parameters.

14. The storage unit of claim 13 , comprising a plurality of walls.

15. The storage unit of claim 13 , wherein the one or more sensors are installed in the one or more mechanical mounts.

16. The storage unit of claim 13 , wherein the health tests are performed by activating one or more subsystems of the VCM.

17. The storage unit of claim 13 , wherein the storage unit comprises a mobile storage unit.

18. The storage unit of claim 13 , wherein the one or more mechanical mounts are configurable to fit VCMs of different types.

19. The storage unit of claim 13 , sized and shaped to have multiple VCMs stored therewithin simultaneously.

Assignees

• Ree Automotive Ltd

Inventors

• Sardes Ahishay
• Segev Tomer
• Dekel Ran
• Chioclea Shmuel
• Doron Neta

Classifications

• H04L2012/40273

  the transportation system being a vehicle · CPC title

• H04L12/40

  Bus networks · CPC title

• B60R16/023 Primary

  for transmission of signals between vehicle parts or subsystems · CPC title

• B60W50/029

  Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts · CPC title

• B60K17/356

  having fluid or electric motor, for driving one or more wheels · CPC title