Abstract: A system for determining a tire change status in a vehicle is provided. The system includes at least one processing device and a storage device. The at least one processing device may be arranged to: calculate a value of at least one reference parameter which may be used in indirect tire pressure monitoring; store the calculated value of said at least one reference parameter in the storage device; retrieve a previously stored value of said at least one reference parameter from the storage device; determine a similarity parameter based on a similarity between the calculated value and the previously stored value of said at least one reference parameter; and determine a tire change status, indicating whether or not the tires have been re-filled or replaced, by comparing said similarity parameter with a threshold.

Abstract: A system for determining a tire change status in a vehicle is provided. The system includes at least one processing device and a storage device. The at least one processing device may be arranged to: calculate a value of at least one reference parameter which may be used in indirect tire pressure monitoring; store the calculated value of said at least one reference parameter in the storage device; retrieve a previously stored value of said at least one reference parameter from the storage device; determine a similarity parameter based on a similarity between the calculated value and the previously stored value of said at least one reference parameter; and determine a tire change status, indicating whether or not the tires have been re-filled or replaced, by comparing said similarity parameter with a threshold.

Abstract: A system and method for issuing a tire pressure deviation in a vehicle's tire is described. The system may include a calculation unit adapted to calculate temporally successive output signals indicative of a tire pressure condition in the vehicle's tire on the basis of temporally successive vehicle's signals. The system may also include a calibration unit adapted to determine a calibration value on the basis of a number of temporally successive output signals from the calculation unit. The system may also include a detection unit configured to detect a tire pressure deviation in the vehicle's tire on the basis of further temporally successive output signals from the calculation unit and the calibration value from the calibration unit, after determination of the calibration value by the calibration unit.

Abstract: System for determining tire wear for tires of a wheeled motor vehicle including a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires; an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from the roll radius of the respective tire; a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; and a processing unit for determining the tire wear for such tires of the motor vehicle for which the indirect tire pressure determination unit provides the respective roll radius factor, namely by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit.

Abstract: The disclosed invention makes use of a wheel speed signal to detect a wheel anomaly such as a loose wheel or a wheel with zero pressure. The wheel speed signal is used as a basis to determine a first and a second detection signal. A further basis for determining the first and second detection signals are a first and second reference signal, respectively. The anomaly of e.g. a loose wheel is detected, according to the teaching of the invention if at least one of the detection signals exceeds a threshold. In particular, the disclosure relates to methods, systems and computer program products to achieve the mentioned objective.

Abstract: System for determining tire wear for tires of a wheeled motor vehicle including a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires; an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from the roll radius of the respective tire; a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; and a processing unit for determining the tire wear for such tires of the motor vehicle for which the indirect tire pressure determination unit provides the respective roll radius factor, namely by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit.

Abstract: The invention provides a system, a method and a computer program of estimating tire pressure deviations in a number of tires of a vehicle wherein a plurality of possible constellations of one or more pressure deviating tires exists. The system comprises a plurality of pressure deviation detectors (11), wherein each of the detectors (11) is adapted to detect at least one of the pressure deviating tire constellations. The system further comprises an output unit (12) which is adapted to provide for a warning if one of the pressure deviation detectors (11) detects at least one of the pressure deviating tire constellations.

Abstract: The invention is directed to a system, a method and a computer program including program code for carrying out the method, when executed on a processing system, of estimating a tire pressure deviation of a vehicle's tire (2). The system includes an input section (100) adapted to receive as an input signal a vehicle signal, a calculation section (200) adapted to calculate at least one shape factor of a resonance peak associated with the vehicle signal spectrum (2) on the basis of the input signal, and a determination section (300) adapted to derive, depending on said at least one shape factor, a tire pressure signal indicative of a tire pressure deviation within the vehicle's tire (2).

Abstract: The invention relates to a tool (1) for forcing a door comprising: —an elongated shaft (2) having a front end and a rear end; —a handgrip (10) located between the front end and the rear end of the shaft; and—a head (5) fixed to the shaft at the front end thereof, the head having a base part (6) provided with a striking surface (7) on a first side for receiving impacts from a striking tool and a wedge part (8) extending from the base part on the opposite side thereof essentially perpendicularly to the longitudinal axis of the shaft.

Abstract: The invention relates to a tool (1) for forcing a door comprising:—an elongated shaft (2); and—a head (5) fixed to the shaft (2) at the front end thereof, the head (5) having a base part (6) provided with a striking surface (7) on a first side for receiving impacts from a striking tool and a wedge part (8) extending from the base part on the opposite side thereof essentially perpendicularly to the longitudinal axis of the shaft. The wedge part comprises a top surface, a bottom surface and two side walls extending between the top surface and the bottom surface on opposite sides of the wedge part. Each one of the side walls is provided with cutting edges (44) extending in parallel to each other or at least essentially in parallel to each other between the bottom surface and the top surface.

Abstract: The invention relates to a tool (1) for forcing a door comprising: —an elongated shaft (2); and—a head (5) fixed to the shaft (2) at the front end thereof, the head (5) having a base part (6) provided with a striking surface (7) on a first side for receiving impacts from a striking tool and a wedge part (8) extending from the base part on the opposite side thereof essentially perpendicularly to the longitudinal axis of the shaft. The wedge part comprises a top surface, a bottom surface and two side walls extending between the top surface and the bottom surface on opposite sides of the wedge part. Each one of said side walls is provided with cutting edges (44) extending in parallel to each other or at least essentially in parallel to each other between the bottom surface and the top surface.

Abstract: The invention relates to a tool (1) for forcing a door comprising:—an elongated shaft (2) having a front end and a rear end;—a handgrip (10) located between the front end and the rear end of the shaft; and—a head (5) fixed to the shaft at the front end thereof, the head having a base part (6) provided with a striking surface (7) on a first side for receiving impacts from a striking tool and a wedge part (8) extending from the base part on the opposite side thereof essentially perpendicularly to the longitudinal axis of the shaft.

Abstract: A method, system and computer program product for detecting a tire pressure deviation in a tire of a vehicle by determining tire pressure indicating data indicative of a tire pressure condition of the tire and determining tire pressure deviation data indicative of a tire pressure deviation in the tire.

Abstract: The invention is directed to a system, a method and a computer program including program code for carrying out the method, when executed on a processing system, of issuing a tire pressure deviation in a vehicle's tire. The system comprises a calculation unit (20) adapted to calculate temporally successive output signals (WRAx) indicative of a tire pressure condition in the vehicle's tire on the basis of temporally successive vehicle's signals. It further comprises a calibration unit (25) adapted to determine a calibration value (WRAcal/X) on the basis of a number of temporally successive output signals (WRAx) from the calculation unit (20). It further comprises a detection unit (30) configured to detect a tire pressure deviation in the vehicle's tire on the basis of further temporally successive output signals (WRAx) from the calculation unit (20) and the calibration value (WRAcal/X) from the calibration unit (25), after determination of the calibration value (WRAcal,x) by the calibration unit (25).

Abstract: The invention is directed to a system, a method and a computer program including program code for carrying out the method, when executed on a processing system, of estimating a tire pressure deviation of a vehicle's tire (2). The system comprises an input section (100) adapted to receive as an input signal a vehicle signal, a calculation section (200) adapted to calculate at least one shape factor of a resonance peak associated with the vehicle signal spectrum (2) on the basis of the input signal, and a determination section (300) adapted to derive, depending on said at least one shape factor, a tire pressure signal indicative of a tire pressure deviation within the vehicle's tire (2).

Abstract: The invention is directed to a system, a method and a computer program including program code for carrying out the method, when executed on a processing system, of the tire low pressure warning of a vehicle. The system comprises an input unit (3) adapted to receive a vehicle signal. It further comprises a determination unit (2,4,5) adapted to determine a tire pressure signal (P) indicative of a tire pressure deviation in the vehicles tire on the basis of the vehicle signal. Finally, it comprises a warning unit (10) adapted to issue a warning signal only after the tire pressure signal (P) has indicated a predetermined pressure deviation (?P0) for a minimum period of time (?Tmin).

Abstract: The invention provides a system, a method and a computer program of estimating tire pressure deviations in a number of tires of a vehicle wherein a plurality of possible constellations of one or more pressure deviating tires exists. The system comprises a plurality of pressure deviation detectors (11), wherein each of the detectors (11) is adapted to detect at least one of the pressure deviating tire constellations. The system further comprises an output unit (12) which is adapted to provide for a warning if one of the pressure deviation detectors (11) detects at least one of the pressure deviating tire constellations.

Abstract: A method of estimating the occurrence of a specific tire pressure deviation between actual and nominal pressure values for one or a plurality of wheels (i) is provided. One or more wheel radius analysis measurement values (?R) are subsequently obtained from a wheel radius analysis component (104), wherein the wheel radius analysis measurement values (?R) are related to single wheel radius values (?ri) of which each is indicative of the wheel radius of a particular wheel (i). One or more wheel vibration data values (?ƒi) are subsequently obtained from a wheel vibration analysis component (102), wherein each of the wheel vibration data values (?ƒi) is indicative of a vibration phenomena in the time dependent behavior of the rotational velocity of a particular wheel (i).