JPH04222193A - Load controller for vehicle - Google Patents

Abstract

PURPOSE:To decrease the number of electric wires and to make the vehicle light in weight as a whole by connecting active junction blocks and respective units by communication lines. CONSTITUTION:First, second and third units 7, 9 and 10 are respectively provided at respective doors 2, 3, 4 and 5, and spaces between an active junction block A-J/B 8 in the car and the unit 7 and between an A-J/B 8 and the unit 9 are connected by communication lines 11. Thus, the number of electric wires among the car body, driving seat door 2 and navigator seat door 3 can be considerably decreased, and the number of connectors or terminals for wiring can be simultaneously reduced. Especially, by decreasing the number of electric wires through the hinge parts of the doors 2 and 3, feeling or the fitting ability can be prevented from being made adverse when conventionally opening/closing the doors, and the vehicle can be made light in weight as a whole.

Description

[Detailed description of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile load control device for controlling loads installed in various parts of an automobile.

0003

[Prior Art] Generally, automobiles have power windows,
Various functions such as electric door locks and electric door mirrors are provided, and these functions can be centrally controlled from the driver's seat using a switch installed on the driver's door. Each door other than the seat door can also be controlled individually.

That is, in a power window, a power window motor, which is a load, is controlled by operating a master switch for centralized control provided on the driver's door and a door switch for individual control provided on each other door. , windows are opened and closed.

[0005] Furthermore, in an electric door lock, the door is locked or unlocked by energizing the solenoid or motor, which is the locking means and the load provided in the locking mechanism of each door, in the forward direction or in the reverse direction. Normally, when a door lock is activated, a vehicle speed determination circuit determines whether the vehicle speed detected by the vehicle speed sensor is equal to or higher than a set value.
When the vehicle speed exceeds the set value, this vehicle speed judgment circuit gives a locking command to each locking mechanism and locks are automatically performed.
Alternatively, the locking or unlocking of each locking mechanism is centrally controlled by a master switch provided on the driver's door and operation detection switches for the locking mechanisms provided on each other door.

Furthermore, in the electric door mirror, the angle adjustment motor and storage motor of the door mirror, which are the loads, are respectively controlled by operating a master switch and a mirror storage switch provided on the driver's door. - Recovery is centrally controlled.

[0007] In addition, each door is equipped with a courtesy lamp that detects when the door is opened using a limit switch on the vehicle body and illuminates the footwell, and a key illumination lamp that illuminates the keyhole position of the ignition key at night. There are also loads such as:

Conventionally, these loads are controlled by individual electronic circuits, and each electronic circuit, each load, and each switch are individually wired using automobile electric wires.

[0009]

[Problem to be solved by the invention] However, in the conventional case,
As mentioned above, each electronic circuit, each load, and each switch are individually wired, and the wiring is such that they can be centrally controlled from the driver's seat, so there is no connection between the driver's door switch and the other door loads. , and the electrical wiring between the car body and each door has become extremely complex, and the number of electric wires that pass through the driver's door hinge is particularly large, making it difficult to feel when opening and closing the door and how to assemble the electric wires into the car. There is a problem in that it can lead to deterioration of sexual quality.

[0010] In recent years, these various functions have been installed not only in luxury cars but also in inexpensive popular cars, and the above problems are not limited to specific car models but are evident in a wide range of car models. There is a tendency to become

[0011] Therefore, this invention was made to solve the above-mentioned problems, and at the same time reduces the number of electric wires and the number of connectors and terminals associated with wiring. The aim is to reduce the number of wires that pass through the system and reduce the overall weight.

0012

[Means for Solving the Problems] A load control device for an automobile according to a first aspect of the present invention includes a power window motor and a door lock motor for each door, an angle adjustment motor and a storage motor for both side mirrors, and a key. A control switch for a plurality of loads such as illumination lamps, courtesy lamps, etc., a generator provided on the driver's door and generating an operation signal according to the operation of each control switch, and a generator having at least a transmitting function, a main unit having a first multiplex communication unit that multiplex transmits the operation signal for the load on the door; and a load drive unit that outputs a load drive signal based on the operation signal for the load on the driver's seat door; an active junction block having a second multiplex communication unit having a transmitting/receiving function and connected to the first multiplex communication unit via a communication line and receiving the operation signal from the first multiplex communication unit; and a passenger seat door. a second multiplex communication unit connected to the second multiplex communication unit via a communication line, and configured to receive the operation signal for the load on the passenger seat door, which is connected to the second multiplex communication unit via a communication line; The present invention is characterized by comprising: a third multiplex communication unit; and a sub-unit having a load drive unit that outputs a load drive signal corresponding to the operation signal received by the third multiplex communication unit.

Further, as a second invention, a control switch for a plurality of loads such as a power window motor and a door lock motor for each door, an angle adjustment motor and a storage motor for both side mirrors, which are provided on the driver's seat door; a generation unit provided on the door and generating operation signals according to the operation of each of the control switches; a fourth multiplex communication unit having at least a transmission function and multiplex transmitting the operation signals for loads of doors other than the driver's door; and a main unit having a load drive section that outputs a load drive signal based on the operation signal for the load of the driver's seat door, and a main unit having an electronic control function and at least a reception function and connected to the fourth multiplex communication section via a communication line. a fifth multiplex communication unit that is connected and receives the operation signal from the fourth multiplex communication unit; a drive control unit that generates a drive control signal corresponding to the operation signal received by the fifth multiplex communication unit; and an auxiliary unit having a load drive section that is provided on a door other than the driver's seat door, receives the drive control signal, and outputs a load drive signal corresponding to the drive control signal. good.

[0014]

[Operation] In the first invention, a main unit and a sub unit having a multiplex transmission function are provided at the driver's door and a passenger door, respectively, and a communication line is provided between the main unit and the active junction block and between the active junction block and the sub unit. As a result, the number of electrical wires between the vehicle body and the driver's door and passenger door is significantly reduced compared to conventional methods, and the number of connectors and terminals associated with wiring is also reduced. The number of electric wires connected is reduced.

Furthermore, in the second invention, the main unit having a multiplex transmission function is provided on the driver's door, and the active junction blocks are connected to each other, so the number of electric wires between the driver's door and the vehicle body is reduced. This reduces the number of wires that pass through the hinge of the driver's seat compared to the previous model.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a first embodiment of a load control device for an automobile according to the present invention.

As shown in the figure, power window motors 21, 31, 41, 51 and door lock motors 22, 51 are installed in the driver's door 2, passenger's door 3, and both rear doors 4, 5 of the automobile 1, respectively. 32, 42, and 52 are provided, and the driver's door 2 has two door mirror angle adjustment motors 23,
24, a storage motor 25, a courtesy lamp 26, and a key illumination lamp 27 for the door key are provided, and the passenger door 3 is provided with angle adjustment motors 33, 34 for the door mirror.
, a storage motor 35, and a courtesy lamp 36, and a key illumination lamp 6 is also provided near the instrument panel.

Further, a first unit 7, which is a main unit, is provided on the driver's door 2, and an active junction block (
(hereinafter referred to as A-J/B) 8, a second unit 9 which is a sub unit is provided on the passenger door 3, and a third unit 10 is provided on both rear doors 4 and 5. The first unit 7 and the A-J/B 8 and the A-J/B 8 and the second unit 9 are connected by a communication line 11 made of a single wire, respectively.
- The coil drive line 12 connects the J/B8 and both third units 10, and the motor drive line connects the A-J/B8 and the door lock motors 42, 52 of both rear seats 4, 5. 13.

Here, the topology of multiplex transmission between the first unit 7, A-J/B 8, A-J/B 8, and the second unit 9 is in the form of a bus, and the branch connection of the bus is in the form of a bus. B
Do it within 8.

By the way, the first unit 7 is constructed as shown in FIG. 2, and a plurality of control switches 14, which are integrated switches for centrally controlling loads such as the aforementioned motors and lamps, are operated. It is provided on the seat door 2.

The first unit 7 includes an input interface circuit (hereinafter referred to as an interface circuit) which is connected to these control switches 14 and other operation switches (not shown) and is a generator for generating operation signals according to the operation of each switch. A clock oscillation circuit (hereinafter referred to as OSC) 71, a power supply circuit 73 connected to a battery, a transmission/reception circuit 74 connected to the communication line 11, and a transmission/reception circuit powered by the power supply circuit 73. The first multiplex communication unit 76 includes a multiplex communication control IC 75 that multiplex transmits the operation signal from the input I/F 71 via the input I/F 74, and the control signal output from the IC 75 according to the operation signal for each load of the driver's door 2. Output I/F as a load drive unit that outputs load drive signals to each load on the driver's door 2
77.

Further, as shown in FIG. 3, the A-J/B 8 receives signals from the OSC 81, a power supply circuit 82 connected to the battery, operation switches different from the control switch 14 mentioned above, and various sensors. power is supplied from the input I/F 83 connected to the input I/F 83, the transmission/reception circuit 84 connected to the transmission/reception circuit 74 of the first unit 7 via the communication line 11, and the power supply circuit 82, and the signal from the input I/F 83 is input. Among the operation signals from the second multiplex communication unit 86 consisting of the multiplex communication control IC 85 and the first multiplex communication unit 76 received by the second multiplex communication unit 86, the operation signal for the load on the rear seat doors 4 and 5. A drive control signal corresponding to the coil drive line 12
Alternatively, it is provided with an output I/F 87 as an electronic control unit that outputs to the motor drive line 13.

At this time, a signal from the input I/F 83 is input to the IC 85, and a multiplex transmission signal corresponding to this input signal is sent from the IC 85 to the first unit 7 or the second unit via the transmitting/receiving circuit 84 and the communication line 11. unit 9.

Furthermore, as shown in FIG. 4, the second unit 9 includes an OSC 91, a power supply circuit 92 connected to a battery, and an input I/F 93 that generates an operation signal by operating an individual power window switch. , a reception circuit 94 connected to the transmission/reception circuit 84 of the second multiplex communication unit 86 via the communication line 11, and a third multiplex communication unit 96 comprising a multiplex communication control IC 95 supplied with power by the power supply circuit 92; Outputs a load drive signal corresponding to the operation signal for the load on the passenger door 3 from the first multiplex communication unit 76 that is transmitted via the second multiplex communication unit 86 and received by the third multiplex communication unit 96. Output I/F97 as a load drive unit
It is equipped with

At this time, the operation signal from the operation of the individual power window switch provided on the passenger door 3 is output as is to the output I/F 97 via the input I/F 93, and is input from the output I/F 97. A load drive signal corresponding to the input operation signal is output.

Further, as shown in FIG. 5, the third unit 10 is operated by inputting a low-level drive control signal for up or down from the A-J/B 8 or by controlling the power window switch 101 individually. By the operation, the up-side or down-side power window relays 102, 103 are energized and the relay contacts of either relay 102, 103 are selectively switched, and the power window motors 41, 51, which are loads, are supplied with electricity from the battery. The structure is such that the current flows in the up direction and the down direction.

When any of the control switches 14 is operated, if the operated control switch 14 is for controlling the load on the driver's door 2, a predetermined load on the driver's door 2 is output from the output I/F 77. A load drive signal is output to drive the predetermined load. For example, when the control switch 14 of the power window motor 21 of the driver's door 2 is operated, the power window motor 21 is energized in the forward or reverse direction. It is driven in forward or reverse rotation to open and close the driver's seat window.

On the other hand, other loads on the driver's door 2 are controlled in the same manner.

By the way, if the operated control switch 14 is for controlling the load on the passenger door 3, the input I/F 71
The operation signal for the load on the passenger door 3 generated by A load drive signal corresponding to the operation signal received by the multiplex communication unit 96 of No. 3 is output from the output I/F 97 to a predetermined load of the passenger door 3, and the predetermined load is driven, for example, power window motor 31
When the control switch 14 is operated, the power window motor 21 of the driver's door 2 is driven forward or reverse in the same way as the power window motor 21 of the driver's door 2 described above, and the opening/closing control of the passenger seat window is centrally controlled by operation from the driver's door 2 side. can be done.

Furthermore, if the operated control switch 14 is for controlling the load on the rear seat doors 4 and 5, the input I/F 71
The operation signal for the power window motors 41, 51 of the rear seats 4, 5 generated by the
A drive control signal corresponding to the operation signal that is multiplex transmitted to the second multiplex communication unit 86 via the communication line 11 by 6 and received by the second multiplex communication unit 86 is transmitted from the output I/F 87 to the coil drive line 12. is output to the third unit 10 via the power window motor 41.
, 51 from the battery, the power window motors 41, 51 are driven in forward or reverse rotation, and opening and closing of the rear seat window can be centrally controlled by operating from the driver's door 2 side. .

At this time, from A-J/B8 to the rear door 4,
When a drive control signal for the door lock motors 42 and 52 of No. 5 is output, this drive control signal is sent to the motor drive line 1.
The signal is directly input to the door lock motors 42 and 52 via the motor 3, and the motors 42 and 52 are controlled simultaneously.

By the way, the passenger door 3 and the rear door 4,
When the individual power window switch 5 is operated, the input I/F of the second unit 9 is activated at the passenger door 3.
The operation signal generated from 93 is outputted via IC95.
/F97, a load drive signal is output from the output I/F97 to the power window motor 31, the power window motor 31 is driven forward or reverse, and the rear door 4, 5 is driven.
Now, the power window motor 4 is operated by the third unit 10.
Current from the battery is passed through the power window motors 41, 51 to rotate forward or reverse, and when the doors 3, 4, 5 are operated, the passenger door 3, both rear doors 4, The opening and closing of the 5 windows can be controlled individually.

[0033] Therefore, the first, second and third units 7,
9 and 10 are provided on each door 2, 3, 4, and 5, respectively, between A-J/B8 and the first unit 7 in the vehicle interior, and between A-J/B8 and the first unit 7.
Since the /B8 and the second unit 9 are connected by the communication line 11, the number of electric wires between the vehicle body and each of the driver's door 2 and the passenger door 3 can be significantly reduced compared to the conventional method. The number of connectors and terminals associated with wiring can be reduced at the same time, and in particular, by reducing the number of wires that pass through the hinges of the driver's door 2 and passenger door 3, the feeling when opening and closing the door and the wires can be reduced. It is possible to prevent deterioration in the assemblability of the vehicle, and it is possible to reduce the weight of the entire vehicle.

Next, FIG. 6 is a block diagram of a second embodiment of the present invention.

In the figure, the same symbols as in FIG. 1 are the same or corresponding parts, and the difference is the driver's door 2.
And the load of the passenger door 3 is the power window motor 21,
31, door lock motors 22, 32, door mirror storage motors 25, 35, courtesy lamps 26, 36, door key key illumination lamp 27, there is no door mirror angle adjustment motor in Fig. 1, and both doors 2, 3
The door lock motors 22 and 32 are separated from the first and second units 7 and 9 and connected to A- through the motor drive line 13.
It is connected to J/B8.

In this case, the first unit 7, A-J/B
The configurations of the second and third units 9 and 10 are as shown in FIGS. 2 to 5, and their basic operations are almost the same as the first embodiment described above. The door lock motors 22 and 32 of the seat door 3 are controlled by A-J/B8.
The door lock motor 42 of the rear seat doors 4 and 5 is activated by a drive control signal input from
52, and the same effect as in the first embodiment can be obtained.

FIG. 7 is a block diagram of a third embodiment of the present invention.

In the figure, the same symbols as in FIG. 1 are the same or corresponding parts, and 15 is a fourth unit as a main unit provided in the driver's door 2, which is similar to the first unit 7 shown in FIG. 1 except that the transmitting/receiving circuit 74 in FIG. 1 is replaced with a transmitting circuit to constitute a fourth multiplex communication section.
It has the same configuration as the first unit 7 of.

Further, 16 is an A-J/B provided near the instrument panel in the vehicle interior, and is similar to A-J/B shown in FIG.
A- in FIG.
It has the same configuration as J/B8.

Furthermore, a fifth unit 17 is a sub-unit provided in the passenger door 3 and both rear doors 4 and 5, and has the same configuration as the third unit 10 in FIG.

[0041] Then, the fourth unit 15 and A-J/
B16 is connected by a communication line 11, A-J/B16 and each fifth unit 17 are individually connected by different coil drive lines 12, and each fifth unit is connected by a drive control signal from A-J/B16. A load drive signal is output from the unit 17 of 5 to each power window motor 31, 41, 51, and the opening/closing control of each power window motor 31, 41, 51 is controlled. Opening/closing control of the windows of the rear seats 4 and 5 is performed centrally.

At this time, the passenger seat door 3, both rear seat doors 4,
The first is that the windows of each door 3, 4, and 5 can be opened and closed individually by operating the individual power window switch 5.
This is similar to the embodiment.

Further, the door lock motors 22, 32, 42, 52 of each door 2 to 5 are connected to the A-J/B 16 via the same motor drive line 13, and are controlled by the drive control signal from the A-J/B 16. Each door lock motor 22, 32, 42
, 52 are controlled at the same time, and the door mirror angle adjustment motors 33 and 34 of the passenger door 3 and the storage motor 35 are connected to the A-J/B 16 by different motor drive lines 13, and the drive control from the A-J/B 16 is performed. The angle adjustment motors 33 and 34 and the storage motor 35 are controlled by the signal, and the angle adjustment and storage control of the door mirror is performed intensively by operating the driver's seat door 2.

Note that this embodiment is an example in which a courtesy lamp and a key illumination lamp are not provided.

In this case, the fourth unit 15 and A-J/
B16 is connected only by the communication line 11, and in particular, the electric wire between the driver's door 2 and the vehicle body requires only the communication line and the motor drive line 13 to the door lock motor 22, so the hinge of the driver's door 2 The number of electric wires passing through the section can be reduced compared to the conventional method.

Next, FIG. 8 is a block diagram of a fourth embodiment of the present invention.

This figure is different from FIG. 7 in that there is no angle adjustment motor for the door mirrors of the driver's door 2 and the passenger door 3, and the rest is the same as that of FIG. It is possible to obtain the same effect as in the embodiment.

Furthermore, FIG. 9 is a block diagram of a fifth embodiment of the present invention.

This figure differs from FIG. 7 in that there are no door mirror angle adjustment motors and storage motors for the driver's door 2 and passenger door 3, and there are no door lock motors for each door 2 to 5. A key illumination lamp 27 for the door key of the door 2 and a key illumination lamp 6 for the ignition key are provided, and these key illumination lamps 6, 27 are similar to the first embodiment. They are each controlled by a fourth unit 15.

Therefore, although this embodiment is equipped with fewer functions than the third and fourth embodiments, the third and fourth embodiments are
Effects equivalent to those of the fourth embodiment can be obtained.

[0051]Although each of the above embodiments has been described for the case of four doors, it is of course applicable to the case of two doors as well.

Further, it goes without saying that the loads provided to each part are not limited to those in each of the above embodiments.

[0053]

As described above, according to the load control device for an automobile according to claim 1, the main and sub units each having a multiplex transmission function are provided at the driver's door and the passenger's door, and the main unit and the active junction Since communication lines are used to connect the block and the active junction block to the second unit, the number of electric wires between the vehicle body and the driver's door and passenger door can be significantly reduced compared to conventional methods. At the same time, the number of connectors and terminals associated with wiring can be reduced.In particular, by reducing the number of wires that pass through the hinge of the driver's door, the feeling of opening and closing the door and the ease of assembling wires can be reduced. This makes it possible to reduce the weight of the entire vehicle.

Further, according to the bicycle load control device according to claim 2, the fourth unit having a multiplex transmission function is provided on the driver's door, and this and the active junction block are respectively connected. The number of electric wires between the vehicle body and the vehicle body can be reduced, and the number of electric wires that pass through the driver's seat hinge can be reduced compared to the conventional method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a first embodiment of a load control device for an automobile according to the present invention.

FIG. 2 is a block diagram of a first unit that is the main unit in FIG. 1;

FIG. 3 is a block diagram of AJ/B (active junction block) in FIG. 1;

FIG. 4 is a block diagram of a second unit that is a subunit in FIG. 1;

FIG. 5 is a block diagram of the third unit of FIG. 1;

FIG. 6 is a block diagram of a second embodiment of the invention.

FIG. 7 is a block diagram of a third embodiment of the invention.

FIG. 8 is a block diagram of a fourth embodiment of the invention.

FIG. 9 is a block diagram of a fifth embodiment of the invention.

[Explanation of symbols]

1 Car 2 Driver's door 3 Passenger door 4, 5 Rear door 6, 27 Key illumination lamp 7, 9, 10
1st, 2nd, 3rd unit 8, 16 A-J/
B (active junction block) 11 Communication lines 15, 17 Fourth and fifth units 21, 31, 41, 51 Power window motor 22
, 32, 42, 52 Door lock motor 23, 24,
33, 34 Angle adjustment motor 25, 35 Storage motor 26, 36 Courtesy lamp 71 Input I/F 76, 86, 96 First, second, third multiplex communication unit 7
7, 87, 97 Output I/F

Claims (2)

[Claims] 1. A control switch provided on the driver's seat door for a plurality of loads such as a power window motor and a door lock motor for each door, an angle adjustment motor and a storage motor for both side mirrors, a key illumination lamp, a courtesy lamp, and the like; a generating unit that is provided on the seat door and generates an operation signal according to the operation of each of the control switches, and a first multiplex communication unit that has at least a transmission function and multiplex transmits the operation signal for loads on doors other than the driver's door. , and a main unit having a load drive section that outputs a load drive signal based on the operation signal for the load of the driver's door;
an active device having a second multiplex communication unit having a transmitting/receiving function and connected to the first multiplex communication unit via a communication line and receiving the operation signal from the first multiplex communication unit; and a load electronic control unit; and a junction block, which is provided on the passenger door, has a reception function, is connected to the second multiplex communication unit via a communication line, and is transmitted through the second multiplex communication unit to the load on the passenger door. A sub-unit having a third multiplex communication unit that receives the operation signal, and a load drive unit that outputs a load drive signal corresponding to the operation signal received by the third multiplex communication unit. Load control device for automobiles. 2. A control switch for a plurality of loads, such as a power window motor and a door lock motor for each door, an angle adjustment motor and a storage motor for both side mirrors, provided on the driver's door; a generation unit that generates operation signals according to the operation of each control switch; a fourth multiplex communication unit that has at least a transmission function and multiplex transmits the operation signals for loads on doors other than the driver's door; a main unit having a load drive section that outputs a load drive signal in response to the operation signal for the load; and a fourth multiplex communication section having at least a receiving function and connected to the fourth multiplex communication section via a communication line. an active junction block having a fifth multiplex communication unit that receives the operation signal from the fifth multiplex communication unit, a drive control unit that generates a drive control signal corresponding to the operation signal received by the fifth multiplex communication unit; A load control device for an automobile, comprising: a sub-unit having a load drive section provided on a door other than a seat door, into which the drive control signal is input and outputs a load drive signal corresponding to the drive control signal. . 0001