TECHNICAL FIELD

The present invention relates to a measurement device which provides testing of sensors which realize measurement on brake system and on transmission system in land vehicles.

PRIOR ART

When braking is realized in land vehicles, a system which extends from the brake pedal to the tires is activated. Said system provides deceleration or stopping of the vehicle. The braking force, which stops the vehicle, can be provided in a correlated manner with the vehicle speed. In vehicles, there is also a transmission system which provides transfer of the movement of the vehicle, received from the motor, to the tires in accordance with the desired speed. The brake system and the transmission system operate in a correlated manner with each other. Said two systems must operate in a faultless manner in order for the vehicle to realize a voyage in a safe manner. In the opposite case, accidents can occur and loss of life and monetary losses can occur depending on accidents.

In the present art, auxiliary sensors, which can detect abrasions and deteriorations, are placed on the brake system and on the transmission system for providing decreasing of the accidents which result from said systems. Said sensors provide transfer of the data, obtained as a result of measurement, to the electronic control unit of the vehicle. As a result of the analysis, in case it is detected that the measured data is outside the predetermined data, the driver is warned by means of a warning unit connected to the vehicle electronic control unit. However, because of road conditions, weather conditions, etc. reasons, said sensors may realize faulty measurements or may deteriorate depending on abrasion in time. Therefore, sensors must be tested and must be controlled at specific periods. Control of the abrasion or deterioration of the sensors brings together a substantially difficult process load.

As a result, because of the abovementioned problems, an improvement is required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to a measurement device, for eliminating the abovementioned disadvantages and for bringing new advantages to the related technical field.

An object of the present invention is to provide a measurement device which provides testing of sensors which provide detection of depreciation condition of brake linings and brake discs in land vehicles.

Another object of the present invention is to provide a measurement device which provides detection of depreciation condition of brake linings and brake discs depending on the data received from the sensors.

In order to realize the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention is a measurement device for providing testing of said sensors in a land vehicle comprising pluralities of sensors which realize measurement on the brake system and on the transmission system. Accordingly, the subject matter measurement device comprises a user interface through which a user enters the sensor type where measurement shall be made; a voltage measurement unit; a coil measurement unit; a connector group for connecting said voltage measurement unit and said coil measurement unit to sensors; a processor unit associated with the voltage measurement unit, the coil measurement unit and the user interface; said processor unit is configured to provide determining of the type of sensor where measurement shall be made in accordance with the signal received from the user interface and to provide determining of a sensor condition in accordance with the difference of the measurement values received from the coil measurement unit or the voltage measurement unit with respect to the predetermined reference values in accordance with the determined sensor type and to provide displaying of the sensor condition on a display screen provided at the user interface. Thus, the sensors which exist on the brake system and on the transmission system are tested.

In a possible embodiment of the present invention, said connector group comprises one voltage connection end and one ground connection end.

In another possible embodiment of the present invention, a battery is provided for meeting the energy need. In a possible embodiment of the present invention, a battery charging unit is provided for charging said battery.

In another possible embodiment of the present invention, the battery comprises a connection cable, connected to the mains and through which energy passes, for charging the battery.

In a possible embodiment of the present invention, the processor unit provides informing of the user in relation to the sensor type, sensor voltage value, sensor coil value and battery condition selected on said display screen.

In another possible embodiment of the present invention, the sensors, where voltage measurement is made by means of the voltage measurement unit, comprise at least one pressure sensor, at least one caliper sensor and at least one brake valve distance sensor.

In another possible embodiment of the present invention, pluralities of switching elements are provided to the user interface for realizing selection.

In a possible embodiment of the present invention, the sensors, where coil measurement is made by means of coil measurement unit, comprise at least one ABS sensor.

In another possible embodiment of the present invention, a control button is provided to the user interface for realizing turn on/off.

In a possible embodiment of the present invention, a memory unit, which is associated with the processor unit and where predetermined reference values are kept, is provided for each sensor type.

BRIEF DESCRIPTION OF THE FIGURES

In Figure 1 , a representative view of a measurement device is given.

In Figure 2, a representative view of the operation scenario of a measurement device is given. DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

The present invention relates to a measurement device (10) designed with an innovative architecture and which provides testing of sensors which realize measurement on the brake system and on the transmission system provided in land vehicles.

With reference to Figure 1 , the measurement device (10) provides testing of pluralities of sensors provided to the brake system and to the transmission system in said land vehicles. A user is informed about the condition of the transmission system and the brake system depending on the measurement results taken from the sensors by means of the measurement device (10). In a possible embodiment of the present invention, at least one caliper sensor (220), at least one pressure sensor (210), at least one brake valve distance sensor (230) and at least one ABS sensor (310) are tested. The present invention is embodied to provide enabling of variety of number and type of sensors, which are to be tested, without being limited with said examples. The measurement device (10) comprises a user interface (100) through which said user can realize input for selecting the sensor where measurement shall be realized, and where the data, detected as a result of measurement, is displayed to the user. Said user interface (100) comprises a display screen (110) for providing displaying of the data, obtained as a result of measurement, to the user. There are pluralities of switching elements (120) provided in the vicinity of said display screen (110) and for providing selection of the sensor type, where measurement shall be realized, by the user. In a possible embodiment of the present invention, said switching element (120) comprises keypad like a guidance button, a menu button, an enter button, a stop button, a return button, etc. Sensor types have been predefined to the user interface (100). The user provides selection of the sensor, where measurement shall be made, among the displayed sensors through the display screen (110) by means of switching elements (120). There is a control button (130) provided to the user interface (100) for realizing turn on/off process of the device. When said control button (130) is pressed while the device is in turned on position, the device is turned off, and when said control button (130) is pressed while the device is in turned off position, the device is turned on.

With reference to Figure 1 and 2, the measurement device (10) comprises a voltage measurement unit (200) for realizing voltage measurement depending on the type of the sensor selected by means of the user interface (100). By means of said voltage measurement unit (200), the voltage values of the caliper sensor (220), the pressure sensor (210) and the brake valve distance sensor (230) are measured. The measurement device (10) moreover comprises a coil measurement unit (300) for realizing measurement by means of a magnetic field/coil sensor depending on the type of the sensor selected by means of the user interface (100). The coil value, formed by means of the magnetic field of the ABS sensor (310), is measured by means of said coil measurement unit (300). There is a connector group (140) embodied to provide connection of the voltage measurement unit (200) and the coil measurement unit (300) to the sensors and provided to the user interface (100). Said connector group (140) comprises one voltage connection end and one ground connection end.

With reference to Figure 1 and 2, the measurement device (10) comprises a processor unit (400) configured to receive sensor information from the user interface (100), voltage values from the voltage measurement unit (200) and magnetic field/coil value from the coil measurement unit (300). There is a memory unit (500) which provides storage of the data associated with said processor unit (400). The memory unit (500) provides storage of reference values which are predetermined with respect to sensor types. The measurement device (10) moreover comprises an audible warning unit for providing warning of the user in case of danger. In a possible embodiment of the present invention, a loudspeaker, etc. is used as audible warning unit. There is a battery (600) provided in a manner meeting the energy need of the measurement device (10). In a possible embodiment of the present invention, at least one battery (600) is used. There is a battery charging unit (700) for providing charging of said battery. The measurement device (10) moreover comprises an alternative method in a manner providing meeting of the energy need by connecting to the mains by means of a connection cable (610).

As shown in Figure 2, the processor unit (400) provides receiving of the information of sensor, where measurement shall be realized, from the user interface (100). If the type of the sensor selected by means of the user is one of caliper sensor (220), pressure sensor (210) and brake valve distance sensor (230), the voltage value is taken from the voltage measurement unit (200). If the type of the sensor, selected by means of the user, is ABS sensor (310), a magnetic field/coil value is taken from the coil measurement unit (300). In case the processor unit (400) receives data from at least one of the voltage measurement unit (200) or the coil measurement unit (300), the processor unit (400) provides taking of the difference of the received data with respect to the predetermined reference values kept in the memory unit (500). The processor unit (400) provides analyzing of the received measurement data with respect to reference values and then provides displaying of formal statements, which describe the condition of the selected sensor type, voltage value of the sensor, coil value of the sensor, battery (600) condition and the condition of the sensor, to the user on the display screen (110). The processor unit (400) moreover provides warning of the user by means of formal statements shown on the display screen (110) in case the processor unit (400) detects that the sensor measurement data is outside the reference values. Moreover, the user is warned by means of audible warning unit.

An exemplary operation scenario of the present invention is described below;

In order for a user to test the sensors provided on the brake system and on the transmission system existing in a vehicle, first of all, the user has to electrically connect the connector group (140) of the measurement device (10) to the ECU of the vehicle. ECU is a vehicle electronic control unit which provides reading of the data coming from the sensors provided on the vehicle. In case the connection between the measurement device (10) and the vehicle is provided, selection is made by the user for the sensor type, where measurement shall be made, by means of switching elements (120) provided to the user interface (100). As the sensor is selected, the voltage measurement unit (200) or the coil measurement unit (300) is operated by means of the processor unit (400) depending on the type of the selected sensor. The processor unit (400) provides taking of the difference of the measurement data, taken from one of the voltage measurement unit (200) or the coil measurement unit (300), with respect to the reference values kept in the memory unit (500). The processor unit (400) provides analysis of the obtained data as a result of the processes realized. As a result of the analysis, the followings are shown to the user on the display screen (10): the sensor type where measurement is made, voltage measurement value which changes depending on the sensor type or coil measurement value, the data obtained as a result of measurement and the formal statements which describe the usage condition of the sensor and the battery (600) condition. Said formal statements comprise two different variations, namely, GOOD and DANGEROUS. The depreciation condition of the sensors is described in a compliant manner to said variation categories with respect to the reference values which are predetermined and stored in the memory unit (500). Said variation number can change in accordance with the data kept in the memory unit (500) and depending on this, the variation number is increased. In case the result value obtained as a result of measurement of the sensor is within the reference range, the visual symbol named as GOOD is displayed on the display screen (110). In case the result value, obtained as a result of measurement of the sensor, is outside the reference range, the visual symbol named as DANGEROUS is displayed on the display screen (110). Thus, the user is informed about the condition of sensors and is warned about the dangerous usages. The processor unit (400) provides operation of the audible warning unit in case it detects that the sensors are worn. Thus, the user is warned both audibly and visually. In case the test process is completed, in order to provide decrease of the usage of the battery (600), the measurement device (10) is turned off through the control button (130) in accordance with the turn on/off function.

In an exemplary embodiment of the present invention, in order for a user to be able to test the pressure sensor which exists in a brake system of a vehicle, the connector group (140) of the measurement device (10) is connected to ECU of the vehicle. Then, pressure sensor (210) is selected as the sensor type by means of switching elements (120) provided to the user interface (100) of the measurement device (10). After selection is made, the voltage measurement unit (200) is operated by means of the processor unit (400). The voltage measurement unit (200) provides detection of the voltage values of the pressure sensor (210) provided to the brake system. The detected data is sent to the processor unit (400). The processor unit (400) provides taking the difference of the measured voltage value of the pressure sensor (210) from the reference values provided in the memory unit (500). The processor unit (400) detects that the usage condition of the sensor is dangerous from the obtained results. In this case, the visual which describes that the usage condition of the sensor is dangerous, the sensor voltage value and the battery (600) condition are shown to the user through the display screen (110). The processor unit moreover provides operation of the loudspeaker and provides audibly warning of the user.

The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

REFERENCE NUMBERS

10 Measurement device 100 User interface 110 Display screen

120 Switching element 130 Control button 140 Connector group 200 Voltage measurement unit 210 Pressure sensor

220 Caliper sensor 230 Brake valve distance sensor 300 Coil measurement unit 310 ABS sensor 400 Processor unit

500 Memory unit 600 Battery

610 Connection cable 700 Battery charging unit