JP6080470B2 - Load control unit - Google Patents

Description

  The present invention relates to a load control unit that controls driving of a load by a controller.

  A controller is indispensable for load drive control.Connect a connector with a built-in control unit that has some of its functions from the main control unit with multiple communication lines, and connect the control unit built-in connector and each load with wires. Some are connected to drive and control each load (for example, Patent Document 1).

  According to such a configuration, since the built-in control unit of the connector performs drive control of the load, it is possible to reduce the burden on the main control unit that eliminates the need to directly perform drive control of the load. Also, instead of connecting the wires from each load directly to the main control unit individually (in parallel), connect the wires from each load to the control unit built-in connector connected to the main control unit with multiple communication lines. Therefore, it is possible to reduce the amount of wires and reduce the overall weight.

JP 2012-133985 A

  However, in the above-described configuration, there are still electric wires that connect the connector and each load individually (in parallel). Therefore, it is necessary to connect the wires from the full load to the control unit built-in connector, which causes an enlargement of the portion where the wires from each load of the control unit built-in connector are inserted.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a load control unit that can reduce the amount of wiring as much as possible when configuring a unit that drives and controls a load by a controller.

In order to achieve the object, the load control unit of the present invention described in claim 1 comprises:
A load control unit that controls driving of a plurality of loads based on a control signal input from the main control unit to the controller,
A plurality of loads mounted on a single board and driven according to the slide position of the same seat of the vehicle ;
A controller built-in connector mounted on the substrate and electrically connected to each load via a circuit pattern of the substrate;
Corresponds to the slide position data related to the same seat detected by the seat position sensor from the main control unit, which is input to the built-in controller via a multiplex communication line connected to the connector part of the controller built-in connector. based on a common control signal, wherein the controller controls the driving of the respective loads,

  According to the load control unit of the present invention as set forth in claim 1, since a connector with a built-in controller for driving and controlling these is mounted on one substrate on which a plurality of loads are mounted, both are connected in parallel. An electric wire becomes unnecessary and the circuit pattern on a board | substrate replaces this. For this reason, the amount of wiring can be reduced as much as possible in configuring a unit that drives and controls a plurality of loads by the controller based on a control signal from the main control unit.

  According to the present invention, the amount of wiring can be reduced as much as possible in configuring a unit that drives and controls a plurality of loads by a controller.

It is explanatory drawing which shows arrangement | positioning of the vehicle interior illuminating device which concerns on one Embodiment of this invention. It is explanatory drawing which shows the relative positional relationship with the seat of the light source shown in FIG. It is a block diagram which shows schematic structure of the control system of the map lamp and reading lamp which are shown in FIG. The connection relationship of illumination ECU and a light source with respect to the circuit board of FIG. 3 and the controller built-in connector mounted in this is shown, (a) is explanatory drawing seen from the side, (b) is explanatory drawing seen from upper direction. It is explanatory drawing which shows the wiring layout of the board | substrate of illumination lamp of FIG. 3, and illumination ECU. (A), (b) is explanatory drawing which shows an example of the sliding position in the front-back direction of a seat prescribed | regulated with the table memorize | stored in the hard disk of illumination ECU of FIG. 3, and the lighting pattern of a light source.

  Hereinafter, embodiments of the illumination module of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the arrangement of illumination modules according to an embodiment of the present invention.

  As shown in FIG. 1, the vehicle 1 is provided with map lamps 21 and 23 corresponding to the driver's seat 3 and the passenger seat 5 at the front center of the roof liner 13 (see FIG. 5) in the vehicle. Further, the vehicle 1 corresponds to the second row and third row seats 7, 9, and 11 (however, the third row seat 11 corresponds only to both ends of three persons). The left and right sides of the roof liner 13 are respectively provided. And the illumination module which concerns on one Embodiment of this invention is applied to this reading lamp 25-31 and its lighting control system.

  As shown in the explanatory view of FIG. 2, the reading lamps 25 to 31 share the sliding range of the seats 7, 9, and 11 (occupants seated) in the front-rear direction of the vehicle 1 so as to share and cover the sliding ranges. Have four light sources 33a to 33d arranged at intervals. In this embodiment, each light source 33a-33d is comprised by three LED chips of RGB, and it is comprised so that it can light-emit by arbitrary colors by adjusting each brightness | luminance.

  Note that the double circles in FIG. 2 indicate the eye point P (the range in which the line of sight is moved) and the eye range when the occupant seated on the seats 7, 9, and 11 is reading at the slide positions of the seats 7, 9, and 11, respectively. L (movement range of the eye point P due to the physique difference of the occupant) is shown.

  Next, a schematic configuration of the control system of the reading lamps 25 to 31 and the map lamps 21 and 23 will be described with reference to the block diagram of FIG. In the present embodiment, the light sources 33a to 33d of the reading lamps 25 to 31 are mounted on one circuit board 37 (corresponding to a board in claims). A controller built-in connector 35 (control unit built-in connector) is mounted on the circuit board 37. The controller built-in connector 35 has a female connector portion 35a (corresponding to a connector portion in claims) to which the male connector 39a of the multiplex communication line 39 can be connected, and a controller 35b (control unit) made of, for example, a one-chip microcomputer. ing.

  The map lamps 21 and 23 also have light sources 33e and 33f that are configured by three RGB LED chips and can emit light of any color, similarly to the light sources 33a to 33d of the reading lamps 25 to 31. The light sources 33e and 33f of the map lamps 21 and 23 are also mounted on another circuit board 37. A controller built-in connector 35 is also mounted on the circuit board 37.

  The controller 35b is connected to light sources 33a to 33d and light sources 33e and 33f mounted on the circuit board 37.

  Here, the connection structure of the light sources 33a to 33d to the controller 35b will be described taking the controller built-in connector 35 on the circuit board 37 on which the light sources 33a to 33d of the reading lamps 25 to 31 are mounted as an example. As shown in FIGS. 4A and 4B, the controller 35b has a circuit pattern 37a on the circuit board 37 through an L-shaped terminal 35c that extends through the housing of the controller-incorporated connector 35 and extends outward. To 37d (see FIG. 4B). Light sources 33a to 33d are connected to the circuit patterns 37a to 37d, respectively.

  The circuit patterns 37a to 37d may be constituted by conductive patterns formed on the surface of the circuit board 37. When the circuit board 37 is constituted by a metal core board having a metal plate (core part) in the intermediate layer, the circuit patterns 37a to 37d are intermediate. The circuit patterns 37a to 37d may be formed of layer metal plates.

  A multiple signal line 39 from an illumination ECU (Electronic Control Unit) 43 (main control unit) is connected to the controller 35b through a connector portion 35a and a male connector 39a.

  Therefore, the controller 35b turns on the light sources 33a to 33d of the reading lamps 25 to 31 and the light sources 33e and 33f of the map lamps 21 and 23 based on a control signal input from the illumination ECU 43 via the multiplex communication line 39. Controls turning off.

  As shown in the explanatory diagram of FIG. 5, the circuit board 37 described above is arranged in the roof liner 13 of the vehicle 1, and the multiplex communication line 39 from the lighting ECU 43 connected to the controller built-in connector 35 on the circuit board 37 is These are routed inside the pillars 15 and 17 of the vehicle 1.

  Since the wiring in the pillars 15 and 17 is the multiplex communication line 39, the number of wirings is reduced as compared with the case where the individual wirings connected to the light sources 33a to 33d are connected to the pillars 15 and 17, respectively. It is possible to effectively utilize the limited space in the pillars 15 and 17 through which many lines are connected.

  As shown in FIG. 3, data on the vehicle speed of the vehicle 1 measured by the vehicle speed sensor 47 is input to the illumination ECU 43 from the engine ECU 45 via the in-vehicle LAN 41 at regular intervals. Further, the lighting ECU 43 receives the data of the slide positions in the front-rear direction of the second row and third row seats 7, 9, and 11 detected by the seat position sensors 51a to 51c from the seat ECU 49 via the in-vehicle LAN 41. Input every time. The slide position data of the seats 7, 9, and 11 may be input when the lighting ECU 43 requests the seat ECU 49.

  Further, the lighting ECU 43 includes seating state data detected by the seating sensors 53a to 53e from the seat ECU 49 via the in-vehicle LAN 41, and seat belt sensors 55a to 55e. Data on the seat belt wearing state of the detected seats 7, 9 and 11 (for three persons) is input.

  The illumination ECU 43 is connected to map lamp switches 21a and 23a for turning on and off the map lamps 21 and 23 and reading lamp switches 25a to 31a for turning on and off the reading lamps 25 to 31 via an interface (not shown). Yes.

  The illumination ECU 43 controls lighting and extinguishing of the map lamps 21 and 23 and the reading lamps 25 to 31 based on the input from the connection target described above. In particular, in the present embodiment, the illumination ECU 43 is based on the slide position data in the front-rear direction of the seats 7, 9, and 11 from the seat ECU 49 to the seat position sensors 51a to 51c and the on / off states of the reading light switches 25a to 31a. Thus, the lighting of the light sources 33a to 33d of the reading lamps 25 to 31 is controlled.

  Therefore, the illumination ECU 43 has a CPU, a RAM, a ROM, a hard disk, and the like (all not shown). Then, according to the program stored in the ROM, the CPU uses the RAM as a work area while referring to the table stored in the hard disk, and turns on and off the light sources 33a to 33d of the reading lamps 25 to 31. Take control.

  In the table stored in the hard disk, the slide positions in the front-rear direction of the seats 7, 9, and 11 and the lighting (including brightness = brightness) and extinguishing patterns of the light sources 33a to 33d corresponding thereto are defined. Yes.

  For example, as shown in the explanatory diagram of FIG. 6A, in the lighting pattern in the case where the seats 7, 9, and 11 are in a substantially intermediate slide position in the front-rear direction, the second light source 33b from the front is 100% duty. Illuminated. The front light source 33a is turned on with a 20% duty, the third light source 33c from the front is turned on with a 50% duty, and the rear light source 33d is turned off.

  As shown in the explanatory diagram of FIG. 6B, in the lighting pattern in the case where the seats 7, 9, and 11 are in a substantially intermediate slide position in the front-rear direction, the third light source 33c from the front is 100% duty. Illuminated. The second light source 33b from the front is turned on with a 20% duty, the rearmost light source 33d is turned on with a 50% duty, and the front light source 33a is turned off.

  As described above, in this embodiment, the three LED chips of RGB that are the light sources 33a to 33d of the reading lights 25 to 31 and the controller built-in connector 35 are mounted on the same circuit board 37, and the controller built-in connector 35 is mounted. The signal line between the controller 35b and the light sources 33a to 33d is eliminated. At the same time, the controller 35 b and the lighting ECU 43 are connected by a multiplex communication line 39, and the multiplex communication line 39 is routed inside the pillars 15 and 17 of the vehicle 1.

  For this reason, the number of wires is reduced compared to the case where individual wires connected to the respective light sources 33a to 33d are routed through the pillars 15 and 17, and the other inside the pillars 15 and 17 where many other wires are routed are limited. Space can be used effectively.

  In the present embodiment, the case where the present invention is applied to an illumination module used for lighting in a vehicle has been described. However, the present invention uses a load other than a light source for illumination as a load, and a plurality of control modules are input based on a control signal input to the controller. The present invention can be widely applied when configuring a load control unit for controlling the driving of the load.

The present invention is extremely useful with in constructing the load control unit for controlling the driving of the load of multiple vehicle based on a control signal inputted to the controller.

DESCRIPTION OF SYMBOLS 1 Vehicle 3 Driver's seat 5 Passenger seat 7, 9, 11 Seat 13 Rufrina 15, 17 Pillar 21, 23 Map lamp 21a, 23a Map lamp switch 25-31 Reading lamp 25a-31a Reading lamp switch 33a-33d Light source (load)
33ae, 33f Light source 35 Controller built-in connector 35a Female connector (connector)
35b Controller 37 Circuit board 37a to 37d Circuit pattern 39 Multiple communication line 39a Male connector 41 In-vehicle LAN
43 Lighting ECU
45 Engine ECU
47 Vehicle speed sensor 49 Seat ECU
51a to 51c Seat position sensor 53a to 53e Seating sensor 55a to 55e Seat belt sensor L Eye range P Eye point

Claims (1)

A load control unit that controls driving of a plurality of loads based on a control signal input from the main control unit to the controller,
A plurality of loads mounted on a single board and driven according to the slide position of the same seat of the vehicle ;
A controller built-in connector mounted on the substrate and electrically connected to each load via a circuit pattern of the substrate;
Corresponds to the slide position data related to the same seat detected by the seat position sensor from the main control unit, which is input to the built-in controller via a multiplex communication line connected to the connector part of the controller built-in connector. based on a common control signal, wherein the controller controls the driving of the respective loads,
A load control unit characterized by that.

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