Question about 2002 Jaguar X-Type
The light on the dashboard telling me the doors are open and the interior light stayes on while i am driving, i have been told this might be a sensor
problem but where are the door sensors.
also the alam blips when i try to lock the doors.
The apparatus for diagnosing failures and/or malfunctions, in particular for lift doors
and/or cars, originally comprises:
at least an accelerometric sensor associated with mechanisms for actuating the doors to
detect their condition of motion; and/or
at least a sensor of acoustic signals associated with mechanisms for actuating the doors
to detect their acoustic emissions; and/or
at least an optical sensor associated with at least a traction cable of doors and/or cars to
detect any unravelling of the cable.
These sensors are preferably miniaturised and can be buried within mechanical and/or structural components of the doors of the cars.
The use of accelerometric sensors to detect the condition of motion of the doors allows to monitor, in particular, the wear of sliding and rotating components of the mechanisms for actuating the doors.
In the preferred embodiment, the sensors of acoustic signals to detect the noisiness of the cinematic mechanisms provide for the use of one or more piezoelectric microphones. The optical sensor preferably comprises at least a transmitter of a laser signal, at least a signal receiver situated opposite to the transmitter relative to the cable to be monitored and at least an optical lens interposed between the transmitter and the receiver and intercepting the laser signal.
Any unravelling of the cable is detected, since the unravelling itself constitutes an obstruction to the propagation of the laser signal from the transmitter to the receiver. In particular, said laser signal is in the form of a luminous blade.
Such an optical sensor has the important advantages of having a high response speed and to be more economical of a traditional vision system, for instance with a television camera.
In the preferred embodiment, the apparatus comprises electronic means for controlling the revolutions per minute of a motor for actuating the car and/or a motor for actuating the mechanisms for opening and closing the doors. In particular, said electronic means are preferably constituted by an encoder associated with the aforesaid motors.
The apparatus is provided with sensors for measuring the electrical voltage that is generated during the transients associated with the closure of electrical contacts of doors and/or of the car.
The data and measurements obtained by the sensors are acquired and processed by automatic processors that compare them with reference parameters.
Said processors are based on an algorithm for recognising a"pattern", according to the known concept of"pattern recognition", through which any event can be described.
Specifically, pattern recognition allows to use both continuous variables and discrete variables, in order to identify a state vector able exhaustively to describe the instantaneous state of the operating condition of the system.
It is possible to use processors based on neural networks, able autonomously to learn and recognise in adaptive fashion new types of failures, without requiring specific calibrations or realignments as a function of new parameters.
The management of processors and sensors, as well as the analysis of any failures can also be conducted remotely, appropriately connecting the apparatus to a computer network with access to the Internet or more simply by means of a modem and the telephone line.
In an alternative embodiment, to enhance the security of the facility it is possible to install a load weighing device on the car, in order to detect the presence of persons inside the car.
The load weighing device is preferably obtained by means of load cell connected to and controlled by the aforesaid processors.
To detect the presence of persons inside the car, it is also possible to use volumetric sensors.
The apparatus of the invention also comprises proximity sensors to measure the distance between the door wing and the threshold and/or between the door wing and the door jamb.
Posted on Aug 04, 2008
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Posted on Jan 02, 2017
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this warning light or any other stays on in the dash it is indicating
that the systems control module (or the system sensor in the case of
lights like low oil pressure, door open indicators etc.) has detected
a fault, it then disables the system (this applies to ABS,TCS, TCM,
SRS and BCM faults and others) as long as the light is on. You must
now have the dealer hook up a special electronic diagnostic tool and
"scan" the system for the fault code that is stored for the
Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module
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