WO2008049944A1 - Trailer-compatible improved active electronic device - Google Patents

Trailer-compatible improved active electronic device Download PDF

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Publication number
WO2008049944A1
WO2008049944A1 PCT/ES2007/000602 ES2007000602W WO2008049944A1 WO 2008049944 A1 WO2008049944 A1 WO 2008049944A1 ES 2007000602 W ES2007000602 W ES 2007000602W WO 2008049944 A1 WO2008049944 A1 WO 2008049944A1
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Prior art keywords
trailers
trailer
vehicle
vehicles
lights
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PCT/ES2007/000602
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Spanish (es)
French (fr)
Inventor
Félix MORENO GONZÁLEZ
Ignacio LÓPEZ PANIAGUA
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Universidad Politécnica de Madrid
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Publication of WO2008049944A1 publication Critical patent/WO2008049944A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/58—Auxiliary devices
    • B60D1/62—Auxiliary devices involving supply lines, electric circuits, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for

Definitions

  • the present invention relates to a microcontroller-based electronic system for the electrical connection of trailers, semi-trailers or caravans to vehicles, more specifically for the power supply of the various electrical light signaling circuits, automatically adapting to the electrical characteristics of the own vehicle
  • the scope of the invention is therefore the automotive sector, specifically that of accessories for trailers, semi-trailers and caravans (hereinafter trailers).
  • the object of the invention is to provide a system that allows the connection of trailers to vehicles in a manner compatible with the self-test systems. Systems that more and more vehicles incorporate, even different from each other; and that they do not work properly when a trailer equipped with light signaling is attached to these vehicles. And, on the other hand, that allows to inhibit the parking sensor of the vehicles that incorporate it when said trailer is connected to the vehicle, in order to eliminate false proximity alarms.
  • the principle of operation of these systems consists in the comparison of values of electric current (intensity) pattern with real values measured in the vehicle.
  • the trailers incorporate a signaling system that is necessary to connect to the vehicle.
  • this connection can be made directly, by means of the parallel coupling of the signaling lamps of the trailer to those of the vehicle.
  • an increasing number of vehicles incorporate an obstacle detection system in their rear part to help the parking maneuver. Therefore, when a trailer is connected to one of these vehicles, the proximity of the trailer itself causes the corresponding acoustic or light indication to be activated; becoming necessary the inhibition of said sensor in this last case.
  • the system of the present invention is fed directly with the battery voltage of the vehicle so that two signals for the battery voltage and its return arrive from it.
  • the device has 7 input signals to inform the device about the activation or deactivation of the same number of car lights, each connected to a module to report this eventuality to the 7 circuits or modules that process each of said above-mentioned activation or deactivation signals; as a consequence, through the 7 outputs of the device, the voltage and current needed to turn on each of the trailer lights is generated.
  • These ignition control modules or circuits independent of each other, are composed of two resistors that receive an input signal and control the switching voltage of a NMOS medium power transistor and high input impedance, through the door of the same and whose output is made through its drain which, together with a third resistor, allows the control of the activation and deactivation of a PMOS power transistor, the latter providing a voltage equal to the battery voltage and the current necessary to Each light set by resistance.
  • the seven input signals to inform each of the devices, their respective ignition control circuits and their outputs are each connected to the following lights: left brake light, right brake light, position lights, light fog lamp, left turn signal light, right turn signal light and reverse light.
  • the device circuit will be integrated on a four-layer printed circuit board, according to a preferred embodiment, with an architecture that minimizes electromagnetic emissivity, by means of mass planes distributed by both layers. .
  • the microcontroller incorporated in this invention is responsible for executing 3 control algorithms programmed in it.
  • the first one allows the detection of the connection or not of a trailer in order to inhibit or activate, where appropriate, the parking sensor of the vehicles; said detection is performed by activating a signal for the detection of current consumption.
  • the second is responsible for checking the status of the trailer lights, activating an acoustic and luminous alarm in case of failure in any of them; by checking the existence of consumption that would indicate that the operation is correct, or the absence thereof, indicating a failure in said light.
  • the third party is responsible for detecting the activation signals of the vehicle lights and, consequently, activating the corresponding trailer (s); while allowing the rear fog lamp to be switched off, keeping the trailer itself activated.
  • the three algorithms are based on a technique of "polling" or cyclic verification. In any case, the first two described are only processed when there is no vehicle light activated; otherwise, these algorithms remain on hold. However, the aforementioned algorithms are able to discriminate between three types of "check-control": at the beginning of the connection of the vehicle systems, during normal operation of the vehicle at regular intervals of time (in the range of milliseconds) or a mixed type, that is, self-test at the beginning and during normal vehicle operation.
  • This algorithmic approach based on a microcontroller allows, when necessary, to modify the behavior (detection and signal processing) of the device, adapting to the specific characteristics of each vehicle or range of vehicles.
  • Fig. 1 a block diagram of the electronic architecture of an improved active electronic device for trailer compatibility is shown and in Fig. 2 an electronic scheme of the preferred embodiment of the invention is depicted.
  • MC, Ml, M2, M3, M4, M5, M6 and M7 are the Modules described in the Preferred Embodiment section of the Invention with an entry (le), (2e), (3e), (4e), (5e), (6e) and (7e); respectively, by which they receive the on and off signal from the MC module or microcontroller.
  • this microcontroller receives the signals on or off; (Iv), (2v), (3v), (4v), (5v), (6v) and (Jy), directly from the vehicle and can therefore be adapted to the electrical and temporal characteristics of said signals in each vehicle.
  • Pl common to all modules, by which the battery voltage and its return are connected.
  • Said subsystem will be the one that groups the two trailer brake lights, consisting of two 21 W lamps. Due to the difference in power supplied by said module with respect to the others; these, of lower consumption, will allow to group several lamps of different signals but of simultaneous ignition under the control of a single subsystem, such as for example the position lights together with those of the license plate (5W lamps).
  • Each of the modules will have a power input from the vehicle's battery, a connection input of the corresponding lamp or lamps of the car to said module, and an output for the supply of the equivalent lamps arranged on the trailer.
  • the signals on and off the trailer lights will be determined by the on and off of the rear lights of the vehicle; being, in any case, under control. of the MC Module that supervises the general operation of the device, as well as the periodic verification that these lights are in operation and no fault has occurred. It is not necessary to take the positive pole of the vehicle battery to the trailer lamps, as with any of the current commercial devices.
  • the maximum dynamic consumption per module is 12,12mA, which guarantees compatibility with the "check-control" systems.
  • due to the low ohmic losses of the PMOS transistor output power there is no degradation of the light output of the trailer lamps.
  • the circuit will be designed to withstand the most conditions • unfavorable operation, which would correspond to the simultaneous operation of all lights, at the maximum temperature mentioned above.
  • the operating frequencies of the device, the voltages, and the intensities are at all times in very distant values to those that could present a danger to the operation of the different electronic devices of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The present invention relates to an electronic system based on a microcontroller for the electrical connection of trailers, semi-trailers or caravans to vehicles, more specifically for powering the various light-signalling electric circuits, being automatically adapted to the electrical characteristics of the actual vehicle. The object of the invention is to provide a system that allows the connection of trailers to vehicles in a manner compatible with self-checking systems, which systems increasing numbers of vehicles incorporate, including those that are different from one another and that do not function correctly when a trailer equipped with light signalling is coupled to said vehicles. Furthermore, it also makes it possible to inhibit the parking sensor of vehicles that incorporate such a sensor when said trailer is connected to the vehicle, with a view to eliminating false proximity alarms.

Description

DISPOSITIVO ELECTRÓNICO ACTIVO MEJORADO DE COMPATIBILIDAD PARA REMOLQUES IMPROVED ACTIVE ELECTRONIC DEVICE FOR COMPATIBILITY FOR TRAILERS
OBJETO DE LA INVENCIÓN La presente invención se refiere a un sistema electrónico basado en microcontrolador para la conexión eléctrica de remolques, semiremolques o caravanas a vehículos, más concretamente para la alimentación de los distintos circuitos eléctricos de señalización luminosa, adaptándose automáticamente a las características eléctricas del propio vehículo. El ámbito pues de la invención es el sector de la automoción, concretamente el de los accesorios para remolques, semiremolques y caravanas (en adelante remolques).OBJECT OF THE INVENTION The present invention relates to a microcontroller-based electronic system for the electrical connection of trailers, semi-trailers or caravans to vehicles, more specifically for the power supply of the various electrical light signaling circuits, automatically adapting to the electrical characteristics of the own vehicle The scope of the invention is therefore the automotive sector, specifically that of accessories for trailers, semi-trailers and caravans (hereinafter trailers).
El objeto de la invención es proporcionar un sistema que permita la conexión de remolques a vehículos de forma compatible con los sistemas de autocomprobación. Sistemas que cada vez más vehículos incorporan, incluso diferentes unos de otros; y que no funcionan correctamente cuando a dichos vehículos se les acopla un remolque dotado de señalización luminosa. Y, por otro lado, que permita inhibir el sensor de aparcamiento de los vehículos que lo incorporan cuando el citado remolque está conectado al vehículo, a fin de eliminar alarmas de proximidad falsas.The object of the invention is to provide a system that allows the connection of trailers to vehicles in a manner compatible with the self-test systems. Systems that more and more vehicles incorporate, even different from each other; and that they do not work properly when a trailer equipped with light signaling is attached to these vehicles. And, on the other hand, that allows to inhibit the parking sensor of the vehicles that incorporate it when said trailer is connected to the vehicle, in order to eliminate false proximity alarms.
ESTADO DE LA TÉCNICASTATE OF THE TECHNIQUE
En los últimos años, se ha generalizado la incorporación de sistemas de autocomprobación o "check-control" en los automóviles, que tienen por objeto verificar el correcto estado de diversos sistemas del vehículo. En relación con la invención que se presenta, se hará referencia únicamente a los sistemas de autocomprobación que evalúan el estado dé los circuitos eléctricos de señalización.In recent years, the incorporation of self-test or "check-control" systems in cars has been generalized, which are intended to verify the correct condition of various vehicle systems. In relation to the invention presented, reference will be made only to the self-test systems that evaluate the state of the electrical signaling circuits.
El principio de funcionamiento de estos sistemas consiste en la comparación de valores de corriente eléctrica (intensidad) patrón con valores reales medidos en el vehículo.The principle of operation of these systems consists in the comparison of values of electric current (intensity) pattern with real values measured in the vehicle.
En el caso de que el circuito comprobado se encuentre en estado defectuoso, la intensidad de corriente consumida por aquél mostraría una disparidad significativa con el patrón y se activaría la indicación correspondiente.In the event that the circuit tested is in a defective state, the current intensity consumed by it would show a significant disparity with the pattern and the corresponding indication would be activated.
Los remolques incorporan un sistema de señalización que es necesario conectar al vehículo. En los automóviles no equipados con sistemas de autocomprobación; es decir, de tecnología tradicional, esta conexión se puede realizar directamente, mediante el acoplamiento en paralelo de las lámparas de señalización del remolque a las del vehículo.The trailers incorporate a signaling system that is necessary to connect to the vehicle. On cars not equipped with self-test systems; that is to say, of traditional technology, this connection can be made directly, by means of the parallel coupling of the signaling lamps of the trailer to those of the vehicle.
Esto, no obstante, implica una modificación significativa de la corriente eléctrica total consumida respecto del circuito original, circunstancia que los sistemas de autocomprobación detectan e interpretan como consecuencia de una instalación defectuosa. Por lo tanto, resulta necesario, separar desde el punto de vista eléctrico el circuito de señalización del vehículo de aquel del remolque, de forma que el circuito original no se vea afectado.This, however, implies a significant modification of the total electric current consumed with respect to the original circuit, a circumstance that the self-test systems detect and interpret as a result of a faulty installation. Therefore, it is necessary, from the electrical point of view, to separate the signaling circuit of the vehicle from that of the trailer, so that the original circuit is not affected.
Por otro lado, cada vez un mayor número de vehículos incorporan un sistema de detección de obstáculos en su parte trasera de ayuda a la maniobra de aparcamiento. Por ello, cuando se conecta un remolque a uno de estos vehículos la proximidad del propio remolque hace que se active la indicación acústica o luminosa correspondiente; haciéndose necesaria la inhibición de dicho sensor en este último caso.On the other hand, an increasing number of vehicles incorporate an obstacle detection system in their rear part to help the parking maneuver. Therefore, when a trailer is connected to one of these vehicles, the proximity of the trailer itself causes the corresponding acoustic or light indication to be activated; becoming necessary the inhibition of said sensor in this last case.
Finalmente, en caso de tener que activar en el vehículo la señal luminosa de antiniebla; al conectar un remolque resulta que la propia luz de dicho remolque y la del vehículo estarían activadas simultáneamente lo que produce un efecto luminoso en la parte posterior del vehículo confuso que, en algunos países está prohibido. Por lo tanto, se hace necesario la desconexión automática de la luz antiniebla del vehículo al conectar el remolque; por lo que en el caso descrito en este párrafo y en el anterior resulta imprescindible la detección automática de la presencia de un remolque conectado al vehículo.Finally, in case of having to activate the light fog signal in the vehicle; When a trailer is connected, it turns out that the light of the trailer itself and that of the vehicle would be activated simultaneously, which produces a light effect on the rear of the confusing vehicle, which in some countries is prohibited. Therefore, it is necessary to automatically disconnect the fog lamp from the vehicle when the trailer is connected; so in the case described in this paragraph and in the It is essential to automatically detect the presence of a trailer connected to the vehicle.
DESCRIPCIÓN DE LA INVENCIÓN El dispositivo electrónico activo mejorado de compatibilidad para remolques que la invención propone resuelve de manera plenamente satisfactoria la problemática anteriormente expuesta, en los distintos aspectos comentados.DESCRIPTION OF THE INVENTION The improved active electronic device for compatibility with trailers that the invention proposes solves in a fully satisfactory manner the aforementioned problem, in the different aspects mentioned.
El sistema de la presente invención está alimentado directamente con la tensión de la batería del vehículo por lo que le llegan, procedente de la misma, dos señales para la tensión de la batería y su retorno. Además, el dispositivo dispone de 7 señales de entrada para informar al dispositivo sobre la activación o desactivación del mismo número de luces del automóvil, conectadas cada una de ellas a un módulo para informar de esta eventualidad a los 7 circuitos o módulos que procesan cada una de dichas señales de activación o desactivación anteriormente mencionadas; como consecuencia, a través de las 7 salidas del dispositivo se genera la tensión y corriente necesarias para encender cada una de las luces del remolque.The system of the present invention is fed directly with the battery voltage of the vehicle so that two signals for the battery voltage and its return arrive from it. In addition, the device has 7 input signals to inform the device about the activation or deactivation of the same number of car lights, each connected to a module to report this eventuality to the 7 circuits or modules that process each of said above-mentioned activation or deactivation signals; as a consequence, through the 7 outputs of the device, the voltage and current needed to turn on each of the trailer lights is generated.
Dichos módulos o circuitos de control de encendido, independientes entre sí, están compuestos por dos resistencias que reciben una señal de entrada y controlan el voltaje de conmutación de un transistor de potencia media NMOS y alta impedancia de entrada, a través de la puerta del mismo y cuya salida se realiza a través de su drenador que, junto con una tercera resistencia, permite el control de la activación y desactivación de un transistor de potencia PMOS, proporcionando éste último un voltaje igual a la tensión de la batería y la corriente necesaria para cada luz fijada por la resistencia. Las siete señales de entrada para informar a cada uno de los dispositivos, sus respectivos circuitos de control de encendido y sus salidas están cada una de ellas conectadas a las siguientes luces: luz de freno izquierda, luz de freno derecha, luces de posición, luz de antiniebla, luz del intermitente izquierdo, luz de intermitente derecho y luz de marcha atrás. Por otro lado, como ha sido mencionado al comienzo de este apartado, presenta, un diseño modular que permite su adaptación al número de luces que se necesite mediante la instalación del mismo número de señales de entrada, circuitos de control de encendido y salidas. De acuerdo con otra de las características de la invención, el circuito del dispositivo se integrará sobre una placa de circuito impreso de cuatro capas, según una realización preferente, con una arquitectura tal que minimice la emisividad electromagnética, mediante planos de masa distribuidos por ambas capas.These ignition control modules or circuits, independent of each other, are composed of two resistors that receive an input signal and control the switching voltage of a NMOS medium power transistor and high input impedance, through the door of the same and whose output is made through its drain which, together with a third resistor, allows the control of the activation and deactivation of a PMOS power transistor, the latter providing a voltage equal to the battery voltage and the current necessary to Each light set by resistance. The seven input signals to inform each of the devices, their respective ignition control circuits and their outputs are each connected to the following lights: left brake light, right brake light, position lights, light fog lamp, left turn signal light, right turn signal light and reverse light. On the other hand, as mentioned at the beginning of this section, it presents a modular design that allows its adaptation to the number of lights needed by installing the same number of input signals, ignition control circuits and outputs. According to another feature of the invention, the device circuit will be integrated on a four-layer printed circuit board, according to a preferred embodiment, with an architecture that minimizes electromagnetic emissivity, by means of mass planes distributed by both layers. .
El microcontrolador que se incorpora en esta invención se encarga de ejecutar 3 algoritmos de control programados en él. El primero de ellos permite la detección de la conexión o no de un remolque con objeto de inhibir o activar, en su caso, el sensor de aparcamiento de los vehículos; dicha detección se realiza mediante la activación de una señal para la detección del consumo de corriente.The microcontroller incorporated in this invention is responsible for executing 3 control algorithms programmed in it. The first one allows the detection of the connection or not of a trailer in order to inhibit or activate, where appropriate, the parking sensor of the vehicles; said detection is performed by activating a signal for the detection of current consumption.
Consecuentemente, el sensor de aparcamiento del vehículo se inhibiría desconectando la alimentación del mismo. El segundo se encarga de realizar la comprobación del estado de las luces del remolque, activando una alarma acústica y luminosa en caso de producirse un fallo en alguna de ellas; mediante la comprobación de la existencia de consumo que indicaría que el funcionamiento es correcto, o la ausencia del mismo, indicando un fallo en dicha luz. El tercero es el responsable de detectar las señales de activación de las luces del vehículo y de activar, consecuentemente, la o las correspondientes del remolque; a la vez que permite la desconexión de la luz de antiniebla trasera del vehículo, manteniendo activada la del propio remolque.Consequently, the vehicle parking sensor would be inhibited by disconnecting the power from the vehicle. The second is responsible for checking the status of the trailer lights, activating an acoustic and luminous alarm in case of failure in any of them; by checking the existence of consumption that would indicate that the operation is correct, or the absence thereof, indicating a failure in said light. The third party is responsible for detecting the activation signals of the vehicle lights and, consequently, activating the corresponding trailer (s); while allowing the rear fog lamp to be switched off, keeping the trailer itself activated.
Los tres algoritmos están basados en una técnica de "polling" o verificación cíclica. En todo caso, los dos primeros descritos sólo se procesan cuando no hay ninguna luz del vehículo activada; en caso contrario, dichos algoritmos permanecen en espera. No obstante, los algoritmos mencionados son capaces de discriminar entre tres tipos de "check-control": al inicio de la conexión de los sistemas del vehículo, durante el funcionamiento normal del vehículo a intervalos regulares de tiempo (en el rango de los milisegundos) o un tipo mixto, es decir, autocomprobación al inicio y durante el funcionamiento normal del vehículo.The three algorithms are based on a technique of "polling" or cyclic verification. In any case, the first two described are only processed when there is no vehicle light activated; otherwise, these algorithms remain on hold. However, the aforementioned algorithms are able to discriminate between three types of "check-control": at the beginning of the connection of the vehicle systems, during normal operation of the vehicle at regular intervals of time (in the range of milliseconds) or a mixed type, that is, self-test at the beginning and during normal vehicle operation.
Todos los algoritmos descritos están codificados en lenguaje ANSI-C.All the described algorithms are encoded in ANSI-C language.
Esta aproximación algorítmica basada en un microcontrolador permite, cuando sea necesario, modificar el comportamiento (detección y tratamiento de señales) del dispositivo, adaptándose a las características específicas de cada vehículo o gama de vehículos.This algorithmic approach based on a microcontroller allows, when necessary, to modify the behavior (detection and signal processing) of the device, adapting to the specific characteristics of each vehicle or range of vehicles.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción dos figuras:To complement the description that is being made and in order to help a better understanding of the features of the invention, according to a preferred example of practical implementation thereof, two figures are attached as an integral part of said description:
En la figura 1, se ha representado un diagrama de bloques de la arquitectura electrónica de un dispositivo electrónico activo mejorado de compatibilidad para remolques y en la figura 2 se representa un esquema electrónico de la realización preferente de la invención.In Fig. 1, a block diagram of the electronic architecture of an improved active electronic device for trailer compatibility is shown and in Fig. 2 an electronic scheme of the preferred embodiment of the invention is depicted.
Donde MC, Ml, M2, M3, M4, M5, M6 y M7 son los Módulos que se describen en el apartado de Realización Preferente de la Invención con una entrada (le), (2e), (3e), (4e), (5e), (6e) y (7e); respectivamente, por la que reciben la señal de encendido y apagado procedente del Módulo MC o microcontrolador. A su vez este microcontrolador recibe las señales de encendido o apagado; (Iv), (2v), (3v), (4v), (5v), (6v) y (Jy), directamente del vehículo pudiéndose, por tanto, adaptarse a las características eléctricas y temporales de dichas señales en cada vehículo. Una salida (Is), (2s), (3s), (4s), (5s), (6s) y (7s); respectivamente, por la que se enciende o apaga la luz correspondiente. Y Pl, común a todos los módulos, por la que se conecta la tensión de la batería y su retorno. REALIZACIÓN PREFERENTE DE LA INVENCIÓNWhere MC, Ml, M2, M3, M4, M5, M6 and M7 are the Modules described in the Preferred Embodiment section of the Invention with an entry (le), (2e), (3e), (4e), (5e), (6e) and (7e); respectively, by which they receive the on and off signal from the MC module or microcontroller. In turn, this microcontroller receives the signals on or off; (Iv), (2v), (3v), (4v), (5v), (6v) and (Jy), directly from the vehicle and can therefore be adapted to the electrical and temporal characteristics of said signals in each vehicle. An output (Is), (2s), (3s), (4s), (5s), (6s) and (7s); respectively, by which the corresponding light is switched on or off. And Pl, common to all modules, by which the battery voltage and its return are connected. PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las figuras reseñadas puede observarse cómo el sistema para la conexión eléctrica de remolques a vehículos que se preconiza, está compuesto de una serie de módulos (Ml) a (M7), cada uno de los cuales está asociado al control de encendido o apagado de las lámparas del sistema de iluminación del remolque y todo ello bajo supervisión y control de Módulo MC.In view of the figures outlined, it can be seen how the system for the electrical connection of trailers to vehicles that is recommended is composed of a series of modules (Ml) to (M7), each of which is associated with the ignition control or switching off the lamps of the trailer lighting system and all under supervision and control of MC Module.
La condición de diseño crítica vendrá dada por el módulo que soporte mayor consumo, y por tanto mayor temperatura. Dicho subsistema será el que agrupe las dos luces de freno del remolque, constituido por dos lámparas de 21 W. Debido a la diferencia de potencia suministrada por dicho módulo respecto a los demás; éstos, de menor consumo, permitirán agrupar varias lámparas de señales diferentes pero de encendido simultáneo bajo el control de un solo subsistema, como por ejemplo las luces de posición junto con las de la matrícula (lámparas de 5W).The critical design condition will be given by the module that supports higher consumption, and therefore higher temperature. Said subsystem will be the one that groups the two trailer brake lights, consisting of two 21 W lamps. Due to the difference in power supplied by said module with respect to the others; these, of lower consumption, will allow to group several lamps of different signals but of simultaneous ignition under the control of a single subsystem, such as for example the position lights together with those of the license plate (5W lamps).
Cada uno de los módulos dispondrá de una entrada de alimentación proveniente de la batería del vehículo, una entrada de conexión de la correspondiente lámpara o lámparas del automóvil a dicho módulo, y una salida para la alimentación de las lámparas equivalentes dispuestas sobre el remolque.Each of the modules will have a power input from the vehicle's battery, a connection input of the corresponding lamp or lamps of the car to said module, and an output for the supply of the equivalent lamps arranged on the trailer.
Por lo tanto, las señales de encendido y apagado de las luces del remolque vendrán determinadas por el encendido y apagado de las luces posteriores del vehículo; estando, en todo caso, bajo control . del Módulo MC que supervisa el funcionamiento general del dispositivo, así como la comprobación periódica de que dichas luces están en funcionamiento y no se ha producido ninguna avería. No siendo necesario llevar el polo positivo de la batería del vehículo hasta las lámparas del remolque, como ocurre con alguno de los dispositivos comerciales actuales. Por otro lado el consumo máximo dinámico por módulo es de 12,12mA con lo que queda garantizada la compatibilidad con los sistemas de "check-control". Además, debido a las bajas pérdidas óhmicas del transistor PMOS de potencia de salida no existe degradación de la potencia luminosa de las lámparas del remolque.Therefore, the signals on and off the trailer lights will be determined by the on and off of the rear lights of the vehicle; being, in any case, under control. of the MC Module that supervises the general operation of the device, as well as the periodic verification that these lights are in operation and no fault has occurred. It is not necessary to take the positive pole of the vehicle battery to the trailer lamps, as with any of the current commercial devices. On the other hand, the maximum dynamic consumption per module is 12,12mA, which guarantees compatibility with the "check-control" systems. In addition, due to the low ohmic losses of the PMOS transistor output power there is no degradation of the light output of the trailer lamps.
Por lo tanto, el circuito estará diseñado para soportar las condiciones más • desfavorables de funcionamiento, que corresponderían al funcionamiento simultáneo de todas las luces, a la temperatura máxima anteriormente citada.Therefore, the circuit will be designed to withstand the most conditions • unfavorable operation, which would correspond to the simultaneous operation of all lights, at the maximum temperature mentioned above.
Las frecuencias de funcionamiento del dispositivo, las tensiones, y las intensidades se encuentran en todo momento en valores muy lejanos a aquellos que pudieran presentar peligro para el funcionamiento de los distintos dispositivos electrónicos del vehículo. The operating frequencies of the device, the voltages, and the intensities are at all times in very distant values to those that could present a danger to the operation of the different electronic devices of the vehicle.

Claims

REIVINDICACIONES
1. Dispositivo electrónico activo mejorado de compatibilidad para remolques, semiremolques o caravanas a vehículos caracterizado por disponer de: a. dos señales de entrada provenientes del vehículo, para la tensión de batería y masa, b. 7 señales de entrada para informar al dispositivo sobre la activación o desactivación del mismo número de luces del automóvil, c. 1 módulo de supervisión y control mediante un microcontrolador que procesa cada una de las señales de activación o desactivación anteriormente mencionadas, d. 7 circuitos que reciben cada una de las señales de activación o desactivación procedentes del circuito anterior, que generan la tensión y corriente necesarias para encender cada una de las luces del remolque, e. 7 salidas, cada una de ellas conectada a su correspondiente luz del remolque.1. Improved active electronic device of compatibility for trailers, semi-trailers or caravans to vehicles characterized by having: a. two input signals from the vehicle, for battery voltage and ground, b. 7 input signals to inform the device about the activation or deactivation of the same number of car lights, c. 1 supervision and control module by means of a microcontroller that processes each of the above-mentioned activation or deactivation signals, d. 7 circuits that receive each of the activation or deactivation signals from the previous circuit, which generate the voltage and current necessary to turn on each of the trailer lights, e. 7 outputs, each connected to its corresponding trailer light.
2. Dispositivo electrónico activo mejorado de compatibilidad para remolques, semiremolques o caravanas a vehículos según reivindicación 1, caracterizado porque incorpora un microcontrolador que procesa tres algoritmos y, en el caso de que haya un remolque conectado al vehículo, detectan el remolque y realizan las siguientes funciones: a. Detectar las señales de activación de las luces del vehículo y activar, consecuentemente, la o las correspondientes del remolque; y permitir la desconexión de la luz de antiniebla trasera del vehículo, manteniendo activada la del remolque, b. Activar o inhibir, en su caso, del sensor de aparcamiento de los vehículos, c. Activar una alarma acústica y luminosa en caso de producirse un fallo en alguna de ellas luces del propio remolque. 2. Improved active electronic device of compatibility for trailers, semi-trailers or caravans to vehicles according to claim 1, characterized in that it incorporates a microcontroller that processes three algorithms and, in the event that a trailer is connected to the vehicle, detects the trailer and performs the following functions: a. Detect the activation signals of the vehicle lights and, consequently, activate the corresponding trailer (s); and allow the rear fog lamp to be disconnected from the vehicle, keeping the trailer on, b. Activate or inhibit, where appropriate, the vehicle parking sensor, c. Activate an acoustic and luminous alarm in case of failure in any of them lights of the trailer itself.
3. Dispositivo electrónico activo mejorado de compatibilidad para remolques, semiremolques ó caravanas a vehículos según reivindicaciones 1 y 2, caracterizado porqué es capaz de identificar él sistema de "check-contfol" del vehículo, ya sea al inicio de la conexión del sistema al vehículo, durante la conexión o en ambos momentos, y adaptarse a dicho sistema.3. Improved active electronic device of compatibility for trailers, semi-trailers or caravans to vehicles according to claims 1 and 2, characterized in that it is able to identify the system of "check-contfol" of the vehicle, either at the beginning of the connection of the system to the vehicle , during connection or both times, and adapt to said system.
4. - Dispositivo electrónico activo mejorado de compatibilidad para remolques, semiremolques o caravanas a vehículos según reivindicaciones 1 a 3, caracterizado porque presenta un diseño modular que permite su adaptación al número de luces que se necesite mediante la instalación del mismo número de señales de entrada, circuitos de control de encendido y salidas.4. - Improved active electronic device of compatibility for trailers, semi-trailers or caravans to vehicles according to claims 1 to 3, characterized in that it has a modular design that allows its adaptation to the number of lights needed by installing the same number of input signals , ignition control circuits and outputs.
5. Dispositivo electrónico activo mejorado de compatibilidad para remolques, semiremolques o caravanas a vehículos según reivindicaciones 1 a 4 caracterizado porque, en una realización preferente, está integrado sobre una placa de circuito impreso de cuatro capas con una arquitectura tal que minimice la emisividad electromagnética, mediante planos de masa distribuidos por ambas capas. 5. Improved active electronic compatibility device for trailers, semi-trailers or caravans to vehicles according to claims 1 to 4 characterized in that, in a preferred embodiment, it is integrated on a four-layer printed circuit board with an architecture that minimizes electromagnetic emissivity, through mass planes distributed by both layers.
PCT/ES2007/000602 2006-10-25 2007-10-24 Trailer-compatible improved active electronic device WO2008049944A1 (en)

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