Sensor Device for Measuring the Rotational Speed at a Wheel of a Vehicle, Brake System and Vehicle Therewith and Measuring Method Which Can Be Carried Out Therewith for Measuring the Rotational Speed, and Braking Method

• US 20150198623A1
• Filed: 06/03/2013
• Published: 07/16/2015
• Est. Priority Date: 06/21/2012
• Status: Active Grant

• Current Assignee: ZF CV Systems Europe BV (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: Wabco GmbH (Wabco Holdings Incorporated)
• Inventors: Grundker, Oliver, Hofler, Siegfried, Dalisdas, Jurgen
• Granted Patent: US 9,827,958 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60T 8/171 Detecting parameters used in the regulation; Measuring values used in the regulation
• CPC Class Codes: B60T 8/329 Systems characterised by their speed sensor arrangements
• CPC Class Codes: G01P 1/00 Details of instruments
• CPC Class Codes: G01P 1/026 for speed measuring devices, e.g. pulse generator
• CPC Class Codes: G01P 3/487 delivered by rotating magnets
• CPC Class Codes: G01P 3/488 delivered by variable reluctance detectors
• CPC Class Codes: G01P 3/49 using eddy currents

Abstract

A sensor device for measuring the rotational speed at a wheel of a vehicle has a sensor carrier with an active sensor for actively sensing the rotation of a pole wheel rotating along with the wheel to measure rotational speed. The sensor carrier is constructed and arranged such that it can be clamped in the region of the wheel to permit the active sensor to be used without requiring complex adjustment operations.

Claims

1. A sensor device for measuring-the rotational speed at a wheel of a vehicle, the sensor device comprising:

a sensor carrier including an active sensor, the sensor carrier being configured to be clamped in a region of the wheel so that the sensor actively senses the rotation of a pole wheel that rotates along with the wheel.

2. The sensor device as claimed in claim 1, wherein the sensor carrier is clamped in the region of the wheel such that the sensor carrier is displaceable along a sensor carrier axis, in a positionally independent fashionmanner in relation to rotation about the sensor carrier axis.

3. The sensor device as claimed in claim 1, wherein the sensor carrier is clamped in the region of the wheel by a clamping bushing.

4. The sensor device as claimed in claim 1, wherein the active sensor includes:

(i) passive pickups having electrical properties that vary as a function of a magnetic field, the magnetic field can be being influenced by the position of the pole wheel with respect to the passive pickups; and

primary electronics that require an auxiliary voltage for evaluation of the electrical properties of the passive pickups for measuring rotational speed.

5. A brake system for a vehicle, the brake system comprising:

sensor devices, at least one of the sensor devices being the sensor device as claimed in claim 1; and

brake electronics in communication with the sensor devices for performing at least one of open-loop and closed-loop control of the brakes based at least in part on signals of the sensor devices.

6. The brake system as claimed in claim 5, wherein at least one sensor device of the sensor devices includes a passive sensor configured to passively sense rotation of a pole wheel of the vehicle.

7. A vehicle, comprising the sensor device as claimed in claim 1.

8. The vehicle as claimed in claim 7, further comprising at least one first axle having at least one first wheel;

the sensor device as claimed in claim 1, the sensor carrier of the sensor device including the active sensor being disposed in a region of the at least one first wheel for measuring rotational speed of the at least one first wheel;

at least one second axle having at least one second wheel; and

a further sensor device comprising a further sensor carrier including a passive sensor disposed in a region of the at least one second wheel for measuring-the rotational speed of the at least one second wheel.

9. A method for measuring rotational speed at a wheel of a vehicle utilizing the sensor device as claimed in claim 1.

10. A method for measuring rotational speed at a wheel of a vehicle utilizing the sensor device as claimed in claim 2.

11. A method for measuring rotational speed at a wheel of a vehicle utilizing the sensor device as claimed in claim 3.

12. A method for measuring rotational speed at a wheel of a vehicle utilizing the sensor device as claimed in claim 4.

16. The sensor device as claimed in claim 1, wherein the sensor carrier is a rod.

17. The sensor device as claimed in claim 1, wherein the sensor carrier is clamped in a securing opening associated with the wheel.

18. The sensor device as claimed in claim 16, wherein the rod is clamped in the region of the wheel such that the rod is displaceable along a rod axis in a positionally independent manner in relation to rotation about the rod axis.

19. The sensor device as claimed in claim 17, wherein the sensor carrier is clamped in the securing opening by a clamping bushing.

20. The brake system as claimed in claim 6, wherein the passive sensor is an inductive sensor.

13. A method for braking wheels of a vehicle utilizing a brake system, the brake system comprising:

brakes;

sensor devices, at least one of the sensor devices having a sensor carrier including an active sensor, the sensor carrier being configured to be clamped in a region of a wheel of the vehicle so that the sensor actively senses the rotation of a pole wheel that rotates along with the wheel; and

brake electronics in communication with the sensor devices for performing at least one of open-loop and closed-loop control of the brakes based at least in part on signals of the sensor devices.

14. The braking method as claimed in claim 13, wherein at least one sensor device of the sensor devices includes a passive sensor for passively sensing the rotation of a pole wheel of the vehicle.

15. The braking method as claimed in claim 14, further comprising measuring rotational speed of a first wheel of a first axle of the vehicle utilizing the active sensor and measuring rotational speed of a second wheel of a second axle of the vehicle utilizing the passive sensor.

21. The brake system as claimed in claim 14, wherein the passive sensor is an inductive sensor.

22. A vehicle, comprising a brake system, the brake system including brakes, sensor devices, at least one of the sensor devices having a sensor carrier including an active sensor, the sensor carrier being configured to be clamped in a region of a wheel of the vehicle so that the sensor actively senses the rotation of a pole wheel that rotates along with the wheel, and brake electronics in communication with the sensor devices for performing at least one of open-loop and closed-loop control of the brakes based at least in part on signals of the sensor devices.

23. The vehicle as claimed in claim 22, Wherein at least one sensor device of the sensor devices includes a passive sensor configured to passively sense rotation of a pole wheel of the vehicle.

24. The vehicle as claimed in claim 23, wherein the passive sensor is an inductive sensor.