JPH0658678U - Vehicle control system - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vehicle control system to which a keyless system or the like can be added without increasing the number of bits. [Structure] A plurality of output devices 12, 13, provided on the vehicle
A first control device 11 and a second control device 15 for controlling 16 and 17 are provided on the respective seat sides, and control signals output from the first control device 11 are transmitted to other first control devices.
A vehicle control system comprising an AN communication system and a voltage multiplex communication system for transmitting a control signal output from the second control device 15 to another second control device by voltage multiplex communication. 15 input terminals 15a, 15b
And the output terminals 11a and 11b of the first control device 11 on the seat side where the second control device 15 is provided, and are connected to the second control device 15 by a control signal output from this output terminal. The output devices 16 and 17 are controlled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle control system that controls a plurality of output devices provided in a vehicle.

[0002]

[Prior art]

 Conventionally, a vehicle control system shown in FIG. 3 has been known as a vehicle control system for controlling ascent / descent of a power window of a vehicle and locking / unlocking of a door. In FIG. 3, 1 is a driver's seat side, 2 is a passenger seat side, 3 is a rear left seat side, 4 is a rear right seat side, and power window actuators 1a to 4a are provided on these seat sides 1 to 4, respectively. , Door lock actuators 1b to 4b, other actuators not shown, drive circuits 1c to 4c for driving these actuators 1a to 4a, 1b to 4b, and 8 bits for controlling these drive circuits 1c to 4c Communication ICs 1d to 4d are provided.

The communication ICs 1d to 4d are connected to each other by a communication line 5, and signals output from the communication ICs 1d to 4d can be mutually transmitted and received by a central control unit 6 including a communication IC 6a and a CPU 6b. That is, the signals output from the communication ICs 1d to 4d provided on the seat sides 1 to 4 by the LAN communication system are transmitted to the other communication ICs 1d to 4d.

In addition, operation switches 7a and 7b for raising and lowering the power window are provided on the seat sides 1 to 4, and when the operation switches 7a and 7b on the rear right seat side 4 are operated, for example, A power window (not shown) provided on the rear right seat side 4 moves up and down. Similarly, when the operation switches 7a and 7b provided on the other seats 1 to 3 are operated, the power windows (not shown) on the seats 1 to 3 are raised or lowered.

The driver's seat side 1 is provided with a lock switch 7c for locking the door, an unlock switch 7d for unlocking, and the like.

Then, for example, when the switch 7c is operated, the actuator 1b is controlled by the drive circuit 1c and the door is locked. On the other hand, a lock signal is output from the communication IC 1d, and this lock signal is transmitted to the communication ICs 2d to 4d of the passenger seat 2 and the rear seats 3 and 4 under the control of the central control unit 6. Then, the communication ICs 2d to 4d control the drive circuits 2c to 4c to drive the actuators 2b to 4b, thereby locking the doors of the passenger seat 2 and the rear seats 3 and 4.

When the unlock switch 7d is operated, the actuators 1b to 4b are controlled in the same manner as described above to unlock each door.

Each seat side 1 to 4 is provided with an operation switch (not shown) for an air conditioner or an air purifier, so that each seat side 1 to 4 operates the air conditioner or the air purifier. You can do it. For example, when those operation switches provided on the rear left seat side 3 are operated, a signal is output from the communication IC 3d, and this signal is transmitted to the communication IC 1d under the control of the central control unit 6. Then, the communication IC 1d controls an air conditioner or an air purifier (not shown).

[0009]

[Problems to be solved by the device]

 By the way, in such a vehicle control system, since the communication ICs 1d to 4d, 6a control many actuators by using 8-bit ones, a keyless system or the like cannot be added. A 16-bit communication IC may be used to solve this, but it becomes expensive and wasteful.

That is, there is a problem in that the 16-bit communication IC cannot be used sufficiently effectively by simply adding a keyless system or another system, resulting in a lot of play.

The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle control system to which a keyless system or the like can be added without increasing the number of bits.

[0012]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a first control unit and a second control unit for controlling a plurality of output devices provided in a vehicle in each seat, and outputs from the first control unit. A vehicle provided with a LAN communication system for transmitting a control signal to another first control unit, and a voltage multiplex communication system for transmitting a control signal output from the second control unit to another second control unit by voltage multiplex communication A control system for a vehicle, wherein the input terminal of the second control section is connected to the output terminal of the first control section on the seat side on which the second control section is provided, and the control output from the output terminal A signal controls an output device connected to the second control unit.

[0013]

[Action]

 In this invention, since the input terminal of the second control section and the output terminal of the first control section on the seat side where the second control section is provided are connected, the output terminal of the first control section is output. The control signal is input to the second control unit, and the output device connected to the second control unit is controlled.

[0014]

【Example】

 An embodiment of a vehicle control system according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 10 is the driver's seat side of the vehicle, 30 is the passenger seat side, 50 is the rear left seat side, 60 is the rear right seat side, and 70 is the rear seat side.

A first control device (first control unit) 11 including an 8-bit communication IC or the like is provided on the driver's side 10 and the first control device 11 includes an illumination lamp (output device) 12 In addition to controlling the operation of the lighting and buzzer (output device) 13, it also controls an air conditioner and an air cleaner (not shown). S1 to S4 are operation switches for air conditioners and air purifiers.

A second controller (second controller) 15 is provided on the driver side 10, and the second controller 15 vertically moves a power window (not shown) on the driver side. The actuator (output device) 16 and the actuator (output device) 17 that locks and unlocks the door (not shown) on the driver's side are controlled. 18 is an automatic raising switch for raising the power window, 19 is an automatic lowering switch for lowering the power window, 20 is a lock switch for locking the door, and 21 is an unlock switch for unlocking the door. The switches 20 and 21 are also connected to the first control device 11.

The output terminal 11 a of the first control device 11 is connected to the input terminal 15 a of the second control device 15 via the transistor 22, and an H level signal is output from the output terminal 11 a of the first control device 11. Then, the transistor 22 becomes conductive and the L level signal is input to the input terminal 15a of the second control device 15. When an L level signal is output from the output terminal 11a of the first control device 11, the transistor 22 becomes non-conductive and an H level signal is input to the input terminal 15a of the second control device 15.

When an L-level signal is output from the output terminal 11a of the first controller 11, that is, when an H-level signal is input to the input terminal 15a of the second controller 15, the second control is performed. The device 15 controls the actuator 17 to lock the door. When an H-level signal is output from the output terminal 11a of the first control device 11, that is, when an L-level signal is input to the input terminal 15a of the second control device 15, the second control device 15 operates as an actuator. It controls 17 and unlocks the door.

The output terminal 11b of the first control terminal 11 is connected to the input terminal 15b of the second control device 15 via the transistor 23, and when an H level signal is output from the output terminal 11b. , The transistor 23 becomes conductive and the L level signal is input to the input terminal 15b. When an L level signal is input to the input terminal 15b, the actuator 16 is controlled and the power window on the driver side 10 is lowered. When the output terminal 11b outputs an L level signal and the transistor 23 becomes non-conductive, the falling of the transistor 23 is stopped. Reference numeral 24 is a manual switch for raising the power window, and 25 is a manual switch for lowering the power window.

The output terminal 15c of the second control device 15 is grounded via a series circuit of a resistor R1 and a Zener diode D. The terminals K1 to K3 of the switch K are connected to the output terminal 15c, and the terminals K4 to K6 of the switch K are connected to the connection point of the resistor R1 and the Zener diode D. The contact pieces Ka to Kc of the switch K can be switched between three positions, that is, a neutral position and positions of the contacts K1 to K3 and K4 to K6, as shown in FIG. When the contact pieces Ka to Kc are in the neutral position, the contact pieces Ka to Kc have a voltage of zero potential, and when the contact pieces Ka to Kc are connected to the contacts K1 to K3, the contact pieces Ka to Kc have a voltage of V1. When the contacts Ka to Kc are connected to the contacts K4 to K5, the contacts Ka to Kc have a voltage V2 smaller than V1.

The contacts Ka to Kc of the switch K are connected to the second control devices (second control units) 31, 51 and 61 provided on the seat sides 30, 50 and 60 by signal lines P1 to P3. The voltage multiplex signal is transmitted to these second control devices 31, 51 and 61. That is, the second control device 15 and the second control devices 31, 51, 61 constitute a voltage multiplex communication system.

The second control devices 31, 51, 61 have manual switches 32, 52, 62 for raising the power windows (not shown) of the respective seat sides 30, 50, 60, and lower the power windows. The manual switches 33, 53, 63 are connected. By operating these switches 32, 33, 52, 53, 62, 63, the second control device 31, 52, 62 controls the actuators (output devices) 34, 54, 64 to move the power window up and down. ing.

The passenger side 30 is provided with a first controller 35 composed of an 8-bit communication IC or the like. The first controller 35 locks or unlocks a door (not shown) on the passenger side 30. In addition to controlling the actuator (output device) 36 for locking, it also controls the illumination lamp 37 and the buzzer 38. In addition, the first control device 35 controls actuators (output devices) 56 and 66 for locking and unlocking doors (not shown) of the rear left seat side 50 and the rear right seat side 60. It is also becoming. JS1 to JS4 are operation switches for air conditioners and air purifiers.

The rear seat side 70 is provided with a first control device 75 composed of an 8-bit communication IC or the like, and the first control device 75 controls the illumination lamps (output devices) 76, 77. ing. Further, operation switches BS1 to BS4 for air conditioners and air purifiers are connected to the first control device 75.

The first control devices 11, 35, 75 provided on these seat sides 10, 30, 70 are connected by a signal line F, and are controlled by a central control unit 80 including an 8-bit communication IC and a CPU. The signals output from the control devices 11, 35, and 75 are transmitted and received. That is, the communication IC that constitutes the first control device 11, 35, 75 and the communication IC of the central controller 80 constitute a LAN communication system.

Then, for example, when the operation switches JS1 to JS4 and BS1 to BS4 are operated, signals are output from the first control devices 35 and 36 and transmitted to the first control device 11 on the driver side 10 by the LAN communication system. It Then, when the first control device 11 receives the signal, it controls the air conditioner and the air purifier.

That is, in addition to the operation of the operation switches S1 to S4 on the driver side 10, the operation switches JS1 to JS4 and BS1 to BS4 provided on the passenger side 30 and the rear seat side 70 are used to operate the air conditioner by the LAN communication system. And the air purifier can be controlled.

When the lock switch 20 or the unlock switch 21 on the driver's side 10 is operated, the second controller 15 controls the actuator 17 to lock or unlock the door on the driver's side 10.

On the other hand, by operating the switches 20 and 21, a lock signal and an unlock signal are output from the first control device 11 and transmitted to the first control device 35 on the passenger side 30 by the LAN communication system. When the first control device 35 receives the signal, the first control device 35 controls the actuators 36, 56, 66 on the passenger seat side 30 and the rear seat side 50, 60 to lock or unlock those doors.

A receiver 81 is connected to the central control unit 80. The receiver 81 receives a lock signal, an unlock signal, and a down signal transmitted from a transmitter incorporated in a key not shown. To receive. For example, when the receiver 81 receives the lock signal or the unlock signal, the central controller 80 outputs the lock signal or the unlock signal to the first control device 11, 35 on the driver side 10 and the passenger side 30. Sent.

When the first control device 35 receives the lock signal or the unlock signal, the actuators 36, 56, 66 are controlled to lock or unlock the doors on the passenger side 30 and the rear seat sides 50, 60.

When the first control device 11 receives the lock signal or the unlock signal, the L level or H level signal is output from the output terminal 11a. As a result, an H level or L level signal is input to the input terminal 15a of the second control device 15 via the transistor 22. Then, the second control device 15 controls the actuator 17 by the H-level or L-level signal input to the input terminal 15a to lock or unlock the door on the driver side 10.

By the way, the actuator 17 for locking and unlocking the door is a DC motor, and locks and unlocks by forward and reverse rotations of the DC motor. This forward and reverse rotation is performed by changing the direction of the current flowing in the DC motor. Since it is necessary to stop the motor to change the direction of this current, at least two output terminals are required. Therefore, if the direct-current motor is directly controlled by the first control device 11, two output terminals are required. However, since the DC motor is controlled via the second controller 15, the first controller 11 needs only one output terminal for controlling the DC motor.

That is, since the direct current and reverse rotation of the DC motor are performed by using two output terminals of the second control device 15, the first control device 11 issues a command for forward rotation or reverse rotation at H level or L level. Therefore, only one output terminal 11a of the first control device 11 for controlling the actuator 17 is required. Therefore, since the output terminal 11b of the first control device 11 is not necessary for controlling the actuator 17, in this embodiment, the output terminal 11b is used for the keyless system, and the power window is lowered by the signal of the output terminal 11b. It was made to let.

That is, when the receiver 71 receives the down signal, the central controller 80 outputs the down signal and the LAN communication system transmits the down signal to the first controller 11 on the driver side 10. When the first controller 11 receives the down signal, an H level signal is output from the output terminal 11b. As a result, the transistor 23 becomes conductive and an L level signal is input to the input terminal 15b of the second control device 15, and the second control device 15 controls the actuator 16 to lower the power window on the driver side 10. .

The other actuators 16, 34, 36, 56, 64, 66 are also DC motors, and the forward / reverse rotation of these motors locks / unlocks the door and raises / lowers the power window. In order to control these actuators 16, 34, 36, 56, 64, 66, the first control device 11, 35 and the second control device 51, 61 output signals from two output terminals.

The switch K provided on the driver's side 10 is for raising or lowering the power windows on the passenger side 30 and the rear seats 50, 60. For example, when the contact piece Ka of the switch K is connected to the contact point K1, the signal of the voltage V1 is input to the input terminal 31a of the second control device 31 on the passenger side 30, whereby the first control device 31 causes the actuator 34 to operate. Control to raise the power window. When the contact piece Ka is connected to the contact K4, a signal of the voltage V2 is input to the input terminal 31a of the second control device 31, and the control device 31 controls the actuator 34 to lower the power window. When the contact piece Ka is positioned at the neutral position shown in the figure, control of the actuator is stopped and ascending and descending of the power window is stopped.

Similarly, by connecting the other contact pieces Kb, Kc to the contacts K2, K3, K5, K6, the power windows of the rear left seat side 50 and the rear right seat side 60 can be raised or lowered. it can.

As described above, the output terminals 11a and 11b of the first control device 11 are connected to the input terminals 15a and 15b of the second control device 15 through the transistors 22 and 23, and output from the output terminals 11a and 11b. Since the door is locked / unlocked and the power window is lowered by the H and L level signals, the number of output terminals of the first controller 11 is small even if the number of actuators to be controlled is large. As a result, the keyless system can be incorporated in the first controller 11 without increasing the number of bits. Moreover, since the number of bits is not increased, the cost is low and no waste occurs.

In the above embodiment, the output terminals 11a and 11b of the first control device 11 and the input terminals 15a and 15b of the second control device 15 are connected via the transistors 22 and 23, but it is inevitable. It is not necessary to interpose the transistors 22 and 23. Further, although the output terminals 11a, 11b of the first control device 11 on the driver side 10 and the input terminals 15a, 15b of the second control device 15 are connected, the output terminals of the first control device 35 of the passenger seat 30 are The input terminal of the second control device 31 may be connected to control the actuator 36 via the second control device 31.

[0042]

[Effect of device]

 According to this invention, the input terminal of the second control unit is connected to the output terminal of the first control unit on the seat side where the second control unit is installed, and the control signal output from this output terminal is used. Since the output device connected to the second control unit is controlled, a keyless system or the like can be added without increasing the number of bits of the first control unit, and the number of bits is increased. Since it is not available, it is inexpensive and waste is not generated.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle control system according to the present invention,

FIG. 2 is a block diagram showing the configuration of a vehicle control system according to the present invention,

FIG. 3 is a block diagram showing a configuration of a conventional vehicle control system.

[Explanation of symbols]

 11 First Control Device (First Control Unit) 12 Illumination Light (Output Device) 13 Buzzer (Output Device) 15 Second Control Device (Second Control Unit) 16 Actuator (Output Device) 17 Actuator (Output Device) 31,51 , 61 Second control device (second control unit) 34,36 Actuator (output device) 35 First control device (first control unit) 54,56 Actuator (output device) 64,66 Actuator (output device)

Claims (1)

[Scope of utility model registration request] 1. A first control unit and a second control unit for controlling a plurality of output devices provided in a vehicle are provided on each seat side, respectively.
A LAN communication system for transmitting a control signal output from the first control unit to another first control unit is provided, and a control signal output from the second control unit is transmitted to another second control unit by voltage multiplex communication. A control system for a vehicle provided with a voltage multiplex communication system for connecting an input terminal of the second control section and an output terminal of a first control section on a seat side where the second control section is provided. A control system for a vehicle, wherein an output device connected to the second control unit is controlled by a control signal output from the output terminal.