Control and monitoring device of a vehicle having a tire-monitoring control unit and a brake control unit integrated in a subassembly

• US 20100292898A1
• Filed: 02/01/2010
• Published: 11/18/2010
• Est. Priority Date: 02/11/2009
• Status: Active Grant

• Current Assignee: Knorr-Bremse Systeme Fur Nutzfahrzeuge GMBH (Estate of Heinz Hermann Thiele)
• Original Assignee: Knorr-Bremse Systeme Fur Nutzfahrzeuge GMBH (Estate of Heinz Hermann Thiele)
• Inventors: Stoehr, Markus
• Granted Patent: US 8,897,957 B2
• Time in Patent Office: Days
• US Class Current: 701/48
• CPC Class Codes: B60C 23/009 having wheels on a trailer
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60T 8/1708 for lorries or tractor-trailer combinations

Abstract

A control and monitoring device of a vehicle, including at least one controlled brake system (ABS, EBS), which during braking adjusts the brake slip and/or the brake pressure to a setpoint value, including at least one brake control device (ECU-EBS, ECU-TEBS) as well as a device (TPMS) for monitoring the tire pressure and/or the tire air temperature of at least one tire, including at least one tire sensor, which transmits a signal representing the individual tire pressure and/or the individual tire air temperature of the particular tire, to at least one tire-monitoring control unit (ECU-TPMS). The at least one tire-monitoring control unit (ECU-TPMS) and the at least one brake control unit (ECU-EBS, ECU-TEBS) are integrated in one subassembly and are configured for the exchange of data among each other.

Claims

1. A control and monitoring device of a vehicle, comprising

at least one controlled brake system, which during braking adjusts at least one of a brake slip and a brake pressure to a setpoint value, including at least one brake control unit;

and

a device for monitoring at least one of a tire pressure and a tire air temperature of at least one tire, having at least one tire sensor, which transmits a signal representing at least one of an individual tire pressure and an individual tire air temperature of the particular tire, to at least one tire-monitoring control unit;

wherein the at least one tire-monitoring control unit and the at least one brake control unit are integrated in one sub-assembly and configured for exchanging data among each other.

2. The control and monitoring device of claim 1, wherein the controlled brake system is an anti-lock brake system for a slip-controlled deceleration of the vehicle having at least one of at least one ABS control unit, which adjusts a brake slip in the wheel brakes as a function of a deviation of an actual slip from a setpoint slip, and an electronically controlled brake system having at least one EBS brake control unit, which adjusts a brake pressure in the wheel brakes as a function of a deviation of an actual brake pressure from a setpoint brake pressure.

3. The control and monitoring device of claim 2, wherein routines are implemented in the at least one EBS brake control unit, with whose aid a brake disk temperature of a brake disk of a disk brake of the vehicle is able to be estimated on the basis of brake and vehicle parameters, including at least one of brake duration, brake pressure, deceleration and vehicle loading, using an estimation algorithm, and wherein routines are implemented at least one of in the at least one EBS brake control unit and in the at least one tire-monitoring control unit for verifying the estimated brake disk temperature on the basis of the measured tire air temperature of the tire assigned to the brake disk.

4. The control and monitoring device of claim 1, wherein the vehicle is a tractor vehicle/trailer combination, the trailer having at least one tire sensor assigned to a trailer tire, and with a trailer tire-monitoring control unit to transmit a signal in a wireless manner to the trailer tire-monitoring control unit, the signal representing at least one of the individual tire pressure and the individual tire air temperature of the respective trailer tire, and the tractor vehicle having at least one tire sensor assigned to a tractor vehicle tire, and with a tractor vehicle tire-monitoring control unit to transmit a signal in a wireless manner to the tractor vehicle tire-monitoring control unit, the signal representing at least one of the particular tire pressure and the particular tire air temperature of the respective trailer tire.

5. The control and monitoring device of claim 4, wherein the tractor vehicle tire-monitoring control unit and the trailer tire-monitoring control unit are configured to communicate with one another wirelessly via a high-frequency link, at least in such a way that data about at least one of the tire pressure and the tire air temperature of at least one trailer tire is able to be transmitted to the tractor vehicle tire-monitoring control unit.

6. The control and monitoring device of claim 4, wherein the tractor vehicle is provided with at least one tractor vehicle brake-control unit, and the trailer is provided with at least one trailer brake control unit.

7. The control and monitoring device of claim 6, wherein there is a wireless data exchange between the tractor vehicle brake control unit and the trailer brake control unit, in that the tractor vehicle brake control unit communicates with the tire-monitoring control unit of the tractor vehicle, and the trailer brake control unit communicates with the tire-monitoring control unit of the trailer in such a way that data regarding the controlled brake system of the tractor vehicle and the controlled brake system of the trailer are transmitted via the wireless high-frequency link between the tractor vehicle tire-monitoring control unit and the trailer tire-monitoring control unit.

8. The control and monitoring device of claim 7, wherein the data regarding the controlled brake system of the trailer also includes at least one of diagnosis data and fault data regarding the controlled brake system of the trailer and are read out from at least one of a diagnosis memory and a fault memory of the trailer brake control unit and transmitted via the wireless high-frequency link between the tractor vehicle tire monitoring control unit and the trailer tire-monitoring control unit, to the tractor vehicle brake control unit or to a separate, portable diagnosis device not tied to the vehicle, for at least one of being evaluated and displayed.

9. The control and monitoring device of claim 7, wherein the tractor vehicle brake control unit is integrated with the tire-monitoring control unit of the tractor vehicle, and the trailer brake control unit is integrated with the tire-monitoring control unit of the trailer in one subassembly in each case and configured for the exchange of data among each other.

10. The control and monitoring device of claim 9, wherein the wireless data exchange between the controlled brake system of the trailer and the controlled brake system of the tractor vehicle is provided as a redundant or parallel data link relative to a wire-bound data exchange via a data bus between the tractor vehicle and the trailer.