JPH10285798A - Load control method and load controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid deteriorations or damages occurring due to the overload condition of a power source or a power supply line by breaking the supply of load current to a power supply line, when the supply of load current at stop control is stopped. SOLUTION: A load controller 10 selects the operation mode of load 22 mounted on a car by operating an on/off switch, and switches the load current 20a supplied from a power source 20 through a power supply line 18 over into the current direction geared to the operation mode to give it to the load 22, and executes the operation, and breaks an operating current 20a, based on the positional detection using a limit switch 222, and executes the stop control of the load 22. Specifically, this is composed mainly of a stop control means 12 which switches the operating current 20a over into the direction of the current geared to a storing mode or a sliding mode, and selects the rotational direction of a motor M, and executes the operation control, and an operation control means 14 which breaks the operating current 20a and executes the stop control of the motor M.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention selects an operation mode of a load by operating an ON-ON switch and switches a load current supplied from a power supply via a power supply line in a current direction corresponding to the operation mode. The present invention relates to a load control method and a load control device that execute an operation control by giving a load to a load, and execute a stop control of the load by interrupting a load current based on position detection using a limit switch built in the load.
Operate the ON-ON switch to select the operation mode of the on-vehicle load such as the TV slider, ventilation fan damper, storage mirror, and swing antenna, and adjust the load current supplied from the battery power supply via the battery power supply line according to the operation mode. A load control method and a load control device for performing an operation control by switching to a current direction and giving the load to a load, and interrupting the load current based on a position detection using a limit switch built in the load to execute a stop control of the load. About.

[0002]

2. Description of the Related Art FIG. 5A is a functional block diagram for explaining a conventional load control device for controlling a TV slider as a load, and FIG. 5B is a conventional load control device for controlling a ventilation fan damper as a load. It is a functional block diagram for explaining a control device.

[0005] In the load control device shown in FIG. 5 (a), an ON-ON switch 1 for designating either storage control or slide control of a TV slider 2 mounted on a vehicle includes a battery power source 5 of the vehicle and a TV. It was provided between the slider 2.

In such a load control device, ON-
By operating the ON switch 1, the TV slider 2
(Ie, the storage operation mode or the slide operation mode) is selected, and the load current 5a supplied from the battery power supply 5 through the battery power supply line 6 is changed in the current direction according to the storage operation mode or the slide operation mode. As a result of being switched and applied to the motor (M in the figure) that drives the TV slider 2, the rotation direction of the motor M (ie, the forward rotation direction or the reverse rotation direction) is selected, and the operation control is performed.

[0005] Further, the supply of the load current 5a to the motor M is cut off based on the position detection in the retracting operation mode or the slide operation mode using the limit switch 2A built in the TV slider 2, so that the TV is switched off. Stop control of the slider 2 (motor M) has been executed.

Similarly, in the load control device shown in FIG. 5B, an ON-ON switch 4 for designating either the closing control or the opening control of the ventilation fan damper 3 mounted on the vehicle is provided by a battery power supply of the vehicle. 5 and the ventilation fan damper 3.

In such a load control device, the ON-
Ventilation fan damper 3 by operating ON switch 4
Operation mode (ie, closed operation mode or open operation mode)
Is selected, and the load current 5a supplied from the battery power supply 5 via the battery power supply line 6 is switched to the current direction according to the closing operation mode or the opening operation mode, and the motor that drives the ventilation fan damper 3 (see FIG. As a result, the normal rotation direction or the reverse rotation direction of the motor M is selected, and the operation control according to the closing operation mode or the opening operation mode is executed.

In addition, when the supply of the load current 5a to the motor M is cut off based on the position detection in the closing operation mode or the opening operation mode using the limit switch 3A built in the ventilation fan damper 3, the switch is closed. Ventilation fan damper 3 (motor M) according to operation mode or open operation mode
Stop control was executed.

[0009]

However, FIG.
In the load control device shown in (a), supply of the load current 5a to the motor M is interrupted based on position detection in the storage operation mode or the slide operation mode using the limit switch 2A built in the TV slider 2. Although the battery power supply 5 and the motor M are cut off, the battery power supply line 6 between the limit switch 2A and the battery power supply 5 is still connected to the battery power supply 5, so that the limit switch 2A and the battery power supply 5 are not connected. If a short circuit accident or a pinching accident occurs in the battery power supply line 6 between the battery power supply line 6 and the battery power supply line 6, an overcurrent may flow through the battery power supply line 5 or the battery power supply line 6. Line 6 may be overloaded, causing degradation or damage There has been a surgical challenge.

[0010] Similarly, in the load control device shown in FIG.
Based on the position detection in the closing operation mode or the opening operation mode using A, the supply of the load current 5a to the motor M is cut off, and the battery power supply 5 and the motor M are cut off. Since the battery power supply line 6 with the battery power supply 5 is still connected to the battery power supply 5, the limit switch 3
If a short circuit accident or pinching accident occurs in the battery power supply line 6 between the battery power supply A and the battery power supply 5, an overcurrent may flow in the battery power supply 5 or the battery power supply line 6, and as a result, the battery power supply 5 and the battery power supply line 6 are overloaded, and there is a technical problem that deterioration or damage may occur.

An object of the present invention is to solve such a conventional problem. First, a load current detecting step of detecting a current value of a load current supplied to a load during stop control, A current comparing step of comparing the current value of the load current detected in the current detecting step with a specified value to determine whether or not the load current has become zero; A stop control step including a power cutoff step of disconnecting the power supply from the power supply line and cutting off the supply of the load current to the power supply line when it is determined that the supply of the load current is unnecessary;
A switch state detecting step of detecting a switch state of the N switch; an operation mode determining step of determining an operation mode according to the switch state; and a power supply via a power supply line in accordance with the operation mode determined in the operation mode determining step. Direction switching step of switching the load current supplied from the controller into a current direction corresponding to the operation mode, and a stop control step having a load driving step of supplying the load with the load current having the current direction determined in the current direction switching step. Accordingly, the value of the load current supplied to the load can be monitored during the stop control, and when the supply of the load current at the time of the stop control is stopped, the power supply is disconnected from the power supply line and the load current is supplied to the power supply line. As a result of executing the control to cut off the supply, a short-circuit accident or pinching occurs in the power supply line between the limit switch and the power supply Even if a failure occurs, load control that can prevent overcurrent from flowing into the power supply and the power supply line and prevent deterioration and damage due to overload of the power supply and the power supply line It is intended to provide a way.

Second, a load current detecting step of detecting a current value of a load current supplied to the load at the time of stop control, and comparing the load current detected in the load current detecting step with a specified value to determine a load value. A current comparing and judging step of judging whether or not the current has become equal to or less than a specified value; Control step having a power cutoff step of cutting off the supply of load current to the power supply line by disconnecting the power supply from the power supply line, a switch state detection step of detecting the switch state of the ON-ON switch, and an operation mode according to the switch state An operation mode determining step of determining the load current supplied from the power supply via the power supply line in accordance with the operation mode determined in the operation mode determining step. Supply to the load by providing a current direction switching step of switching to a current direction corresponding to the operation mode and a load control step of supplying a load current having the current direction determined in the current direction switching step to the load. Can be monitored during stop control, and when the supply of load current during stop control is stopped, power is disconnected from the power supply line and control is performed to cut off supply of load current to the power supply line As a result, even if a short circuit accident or a pinching accident occurs in the power supply line between the limit switch and the power supply, it is possible to prevent an overcurrent from flowing to the power supply and the power supply line,
It is an object of the present invention to provide a load control method capable of preventing a power supply or a power supply line from being overloaded to cause deterioration or damage.

Third, a stop control step of executing control to cut off the supply of the load current to the power supply line by disconnecting the power supply from the power supply line in response to the cutoff of the load current during the load stop control, and ON. A switch state detection step of detecting a switch state of the ON switch, an operation mode determination step of determining an operation mode according to the switch state, and a power supply line via a power supply line according to the operation mode determined in the operation mode determination step. A stop control step including a current direction switching step of switching a load current supplied from a power supply in a current direction according to an operation mode, and a load driving step of supplying a load current having the current direction determined in the current direction switching step to the load. By providing this, the value of the load current supplied to the load can be monitored during stop control, and the supply of load current during stop control can be monitored. When stopped, the power supply line can be disconnected from the power supply line to execute the control to cut off the supply of load current to the power supply line.As a result, a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply Provide a load control method that can prevent an overcurrent from flowing into the power supply and the power supply line even when the power supply and the power supply line are overloaded, and can prevent the power supply and the power supply line from being overloaded and causing deterioration or damage. It is intended to be.

Fourth, a load current detecting section for detecting a current value of a load current supplied to the load at the time of the stop control, and determining whether or not the current value of the load current detected by the load current detecting section has become zero. When the current comparison and determination unit determines that the current value of the load current has become zero and the supply of the load current has been stopped, the power supply line is disconnected from the power supply line to load the power supply line. By providing an operation control unit having a power supply cutoff unit that cuts off the supply of current, the value of the load current supplied to the load can be monitored during stop control, and when the supply of load current during stop control is stopped. As a result of performing control to cut off the supply of load current to the power supply line by disconnecting the power supply from the power supply line, a short circuit accident or pinching accident has occurred in the power supply line between the limit switch and the power supply. Even if it occurs, can be avoided that would overcurrent flows in the power supply or the power supply line,
It is an object of the present invention to provide a load control device capable of preventing a power supply or a power supply line from being overloaded to cause deterioration or damage.

Fifthly, a load current detector for detecting a current value of a load current supplied to the load at the time of the stop control, and a load current detected by the load current detector which is compared with a specified value to compare the load value with a specified value. A current comparison / judgment unit for judging whether or not the current has become equal to or less than a specified value; and A stop control unit having a power cutoff unit that cuts off supply of a load current to a power supply line by disconnecting power from the line, a switch state detection unit that detects a switch state of an ON-ON switch, and operates according to the switch state. An operation mode determining unit for determining a mode, and a load current supplied from a power supply via a power supply line is set to an operation mode in accordance with the operation mode obtained by the operation mode determining unit. The load supplied to the load is provided by providing an operation control unit having a current direction switching unit for switching to the same current direction and a load driving unit for supplying a load current having the current direction obtained by the current direction switching unit to the load. The value of the current can be monitored during the stop control, and when the supply of the load current at the time of the stop control is stopped, the power can be disconnected from the power supply line and the control to cut off the supply of the load current to the power supply line can be performed. Even if a short circuit accident or a pinch accident occurs in the power supply line between the limit switch and the power supply, overcurrent can be prevented from flowing into the power supply or the power supply line, and It is an object of the present invention to provide a load control device capable of avoiding deterioration and damage caused by a load state.

Sixth, stop control means for executing control to cut off the supply of the load current to the power supply line by disconnecting the power supply from the power supply line in response to the cutoff of the load current during the load stop control, and ON A switch state detection unit that detects a switch state of the ON switch, an operation mode determination unit that determines an operation mode according to the switch state, and a power supply line via the operation mode determined by the operation mode determination unit. An operation control unit including a current direction switching unit that switches a load current supplied from a power supply in a current direction according to an operation mode, and a load driving unit that supplies a load current having a current direction obtained by the current direction switching unit to the load. By providing, the value of the load current supplied to the load can be monitored at the time of the stop control, and when the supply of the load current at the time of the stop control is stopped. The power supply line can be disconnected from the power supply line to execute control to cut off the supply of load current to the power supply line.As a result, a short-circuit accident or pinching accident may occur in the power supply line between the limit switch and the power supply. Another object of the present invention is to provide a load control device that can prevent an overcurrent from flowing to a power supply or a power supply line, and can prevent deterioration or damage due to an overload state of the power supply or the power supply line. I have.

[0017]

According to the present invention, a load current supplied from a power supply through a power supply line is selected by operating an ON-ON switch to select an operation mode of a load. 20a is switched to a current direction corresponding to the operation mode and applied to the load 22 to perform operation control, and based on position detection using a limit switch 222 built in the load 22, the load current 20a is cut off and the load 22 is turned off. In the load control method for performing the stop control, the value of the load current 20a supplied to the load 22 is monitored during the stop control, and the power supply is stopped when the supply of the load current 20a during the stop control is stopped. A stop control step of executing control for disconnecting the power supply 20 from the line 18 and cutting off the supply of the load current 20 a to the power supply line 18. This is a load control method.

The load 22 in the following claims means that the operation mode is selected by operating the ON-ON switch 16 and the load current 20a supplied from the power supply 20 via the power supply line 18 is selected. Switching to the current direction according to the operation mode and giving the load to the load 22 to execute the operation control, and based on the position detection using the limit switch 222 built in the load 22, cut off the load current 20a and stop control of the load 22 Means a vehicle-mounted load such as a TV slider, a ventilation fan damper, a storage mirror, a swing antenna, etc.

According to the first aspect of the present invention, the load 22
The supply of the load current 20a can be cut off by using the limit switch 222 built in the power supply and the power supply 20 and the load 22 can be cut off.
There is an effect that the power supply line 18 between 0 and 0 can be cut off from the power supply 20. As a result,
Even if a short circuit accident or a pinch accident occurs in the power supply line 18 between the limit switch 22 2 and the power supply 20, useless consumption of the power supply 20 can be avoided, and unnecessary current is not supplied to the power supply 20 or the power supply line 18. Of the power supply 20 can be avoided, and the power supply 20 and the power supply line 18 can be overloaded.
There is an effect that it is possible to avoid deterioration and damage due to two states.

According to a second aspect of the present invention, in the load control method according to the first aspect, the stop control step detects a current value of a load current 20a supplied to the load 22 during the stop control. A detecting step, a current comparing and judging step of determining whether or not the current value of the load current 20a detected in the load current detecting step has become zero, and a current value of the load current 20a having become zero in the current comparing step. When it is determined that the supply of the load current 20a is stopped, the power supply apparatus further includes a power supply interrupting step of disconnecting the power supply 20 from the power supply line 18 and interrupting the supply of the load current 20a to the power supply line 18. This is a characteristic load control method.

According to the invention described in claim 2, according to claim 1
In addition to the effects described in the above, the provision of the load current detection step and the current comparison / determination step enables the constant current value of the load current 20a supplied to the load 22 to be monitored during the stop control, and that the power supply cutoff step be provided. Therefore, the load current 20 during the stop control
a, the power supply 20 is disconnected from the power supply line 18 when the supply of
There is an effect that control to cut off the supply of a can be executed.

According to the third aspect of the present invention, the operation mode of the load 22 is selected by operating the ON-ON switch 16, and the load current 20a supplied from the power supply 20 via the power supply line 18 is set to the operation mode. The load 22 is switched to a corresponding current direction and applied to the load 22 to perform operation control. Based on position detection using a limit switch 222 incorporated in the load 22, the load current 20a is cut off and stop control of the load 22 is performed. In the load control method, the value of the load current 20a supplied to the load 22 is monitored during the stop control,
When the load current 20a at the time of the stop control falls below a specified value, the supply of the load current 20a becomes unnecessary or the load 22
And a stop control step of executing a control for disconnecting the power supply 20 from the power supply line 18 and cutting off the supply of the load current 20a to the power supply line 18 by determining that an abnormality has occurred. Load control method.

According to the third aspect of the present invention, the load 22
The supply of the load current 20a can be cut off by using the limit switch 222 built in the power supply and the power supply 20 and the load 22 can be cut off.
There is an effect that the power supply line 18 between 0 and 0 can be cut off from the power supply 20. As a result,
Even if a short circuit accident or a pinch accident occurs in the power supply line 18 between the limit switch 22 2 and the power supply 20, useless consumption of the power supply 20 can be avoided, and unnecessary current is not supplied to the power supply 20 or the power supply line 18. Of the power supply 20 can be avoided, and the power supply 20 and the power supply line 18 can be overloaded.
There is an effect that it is possible to avoid deterioration and damage due to two states.

According to a fourth aspect of the present invention, in the load control method according to the third aspect, the stop control step detects a current value of the load current 20a supplied to the load 22 during the stop control. A detecting step, a current comparison determining step of comparing the current value of the load current 20a detected in the load current detecting step with the specified value to determine whether the load current 20a has become equal to or less than the specified value, When it is determined in the current comparison step that the load current 20a becomes equal to or less than the specified value and the supply of the load current 20a becomes unnecessary, the power supply 20 is disconnected from the power supply line 18 and the power supply line 18 is disconnected from the power supply line 18. A load control method comprising a power cutoff step of cutting off the supply of a load current 20a.

According to the invention described in claim 4, according to claim 3,
In addition to the effects described in the above, the provision of the load current detection step and the current comparison / determination step enables the constant current value of the load current 20a supplied to the load 22 to be monitored during the stop control, and that the power supply cutoff step be provided. Therefore, the load current 20 during the stop control
It is determined that the supply of the load current 20a becomes unnecessary or an abnormality occurs in the load 22 when a becomes equal to or less than the specified value, and the power supply 20 is disconnected from the power supply line 18 to load the load current to the power supply line 18. There is an effect that control for shutting off the supply of 20a can be executed.

According to the fifth aspect of the present invention, the operation mode of the load 22 is selected by operating the ON-ON switch 16 and the load current 20a supplied from the power supply 20 via the power supply line 18 is set to the operation mode. The load 22 is switched to a corresponding current direction and applied to the load 22 to perform operation control. Based on position detection using a limit switch 222 incorporated in the load 22, the load current 20a is cut off and stop control of the load 22 is performed. In the load control method, the control for disconnecting the power supply 20 from the power supply line 18 and interrupting the supply of the load current 20a to the power supply line 18 in response to the interruption of the load current 20a during the stop control of the load 22 A load control method comprising a stop control step of executing the load control.

According to the fifth aspect of the present invention, the load 22
The supply of the load current 20a can be cut off by using the limit switch 222 built in the power supply and the power supply 20 and the load 22 can be cut off.
There is an effect that the power supply line 18 between 0 and 0 can be cut off from the power supply 20. As a result,
Even if a short circuit accident or a pinch accident occurs in the power supply line 18 between the limit switch 22 2 and the power supply 20, useless consumption of the power supply 20 can be avoided, and unnecessary current is not supplied to the power supply 20 or the power supply line 18. Of the power supply 20 can be avoided, and the power supply 20 and the power supply line 18 can be overloaded.
There is an effect that it is possible to avoid deterioration and damage due to two states.

The invention according to claim 6 is the invention according to claims 1 to 5
In the load control method according to any one of the above, the operation control step of executing the operation control includes: a switch state detection step of detecting a switch state of the ON-ON switch 16; and the operation according to the switch state. An operation mode determining step of determining a mode; and a load current 20a supplied from a power supply 20 via a power supply line 18 according to the operation mode determined in the operation mode determining step, in a current direction corresponding to the operation mode. And a load driving step of supplying the load 22 with the load current 20a having the current direction determined in the current direction switching step.

According to the invention of claim 6, according to claim 1,
In addition to the effects described in any one of (1) to (5), by providing the switch state detection step and the operation mode determination step, the operation mode of the load 22 can be selected by operating the ON-ON switch 16 and the current direction By providing the switching step, the load current 20a supplied from the power supply 20 via the power supply line 18 can be switched to a current direction corresponding to the operation mode and given to the load 22 to perform the operation control. The provision of such a configuration has an effect that the load current 20a is interrupted based on the position detection using the limit switch 222 built in the load 22, and the stop control of the load 22 can be executed.

According to a seventh aspect of the present invention, the operation mode of the load 22 is selected by operating the ON-ON switch 16 and the load current 20a supplied from the power supply 20 via the power supply line 18 is set to the operation mode. The load 22 is switched to a corresponding current direction and applied to the load 22 to perform operation control. Based on position detection using a limit switch 222 incorporated in the load 22, the load current 20a is cut off and stop control of the load 22 is performed. In the load control device, the value of the load current 20a supplied to the load 22 is monitored during the stop control,
Stop control means for executing a control for disconnecting the power supply 20 from the power supply line 18 and cutting off the supply of the load current 20a to the power supply line 18 when the supply of the load current 20a during the stop control is stopped. 12 is a load control device 10 characterized by having:

According to the seventh aspect of the present invention, by providing such a stop control means 12, the load current 20a is controlled by using the limit switch 222 built in the load 22.
The power supply line 18 between the limit switch 22 2 and the power supply 20 can be cut off from the power supply 20 at the same time as the power supply 20 can be cut off by shutting off the power supply. As a result, the power supply line 1 between the limit switch 222 and the power supply 20
8, even if a short circuit accident or a pinch accident occurs, it is possible to avoid wasteful consumption of the power supply 20 and to prevent unnecessary current or overcurrent from flowing through the power supply 20 or the power supply line 18. Thus, it is possible to avoid wasteful consumption of the power supply 20 and to prevent the power supply 20 and the power supply line 18 from being in an overload state 22 and from being deteriorated or damaged.

According to an eighth aspect of the present invention, in the load control device according to the seventh aspect, the stop control means 12 detects a current value of a load current 20a supplied to the load 22 during the stop control. A current detection unit 122 and a current comparison determination unit 124 that determines whether the current value of the load current 20a detected by the load current detection unit 122 has become zero.
When the current comparison / determination unit determines that the current value of the load current 20a becomes zero and the supply of the load current 20a is stopped, the power supply 20 is disconnected from the power supply line 18 and the power supply line The load control device 10 further includes a power cutoff unit 126 for cutting off the supply of the load current 20a to the load control device 18.

According to the invention described in claim 8, according to claim 7,
In addition to the effects described in the above, the provision of the load current detection unit 122 and the current comparison determination unit 124 allows the constant current value of the load current 20a supplied to the load 22 to be monitored during the stop control, and the power cutoff unit 126 to operate. With the provision, when the supply of the load current 20a at the time of the stop control is stopped, the power supply 20 is disconnected from the power supply line 18 so that the control of cutting off the supply of the load current 20a to the power supply line 18 can be executed. It has the effect of becoming.

According to the ninth aspect of the present invention, the operation mode of the load 22 is selected by operating the ON-ON switch 16 and the load current 20a supplied from the power supply 20 via the power supply line 18 is set to the operation mode. The load 22 is switched to a corresponding current direction and applied to the load 22 to perform operation control. Based on position detection using a limit switch 222 incorporated in the load 22, the load current 20a is cut off and stop control of the load 22 is performed. In the load control device, the value of the load current 20a supplied to the load 22 is monitored during the stop control,
When the load current 20a at the time of the stop control falls below a specified value, the supply of the load current 20a becomes unnecessary or the load 22
And a stop control means for executing a control for disconnecting the power supply from the power supply line and interrupting the supply of the load current to the power supply line by determining that an abnormality has occurred. The load control device 10 described above.

According to the ninth aspect of the present invention, by providing such a stop control means 12, the load current 20a can be obtained by using the limit switch 222 built in the load 22.
The power supply line 18 between the limit switch 22 2 and the power supply 20 can be cut off from the power supply 20 at the same time as the power supply 20 can be cut off by shutting off the power supply. As a result, the power supply line 1 between the limit switch 222 and the power supply 20
8, even if a short circuit accident or a pinch accident occurs, it is possible to avoid wasteful consumption of the power supply 20 and to prevent unnecessary current or overcurrent from flowing through the power supply 20 or the power supply line 18. Thus, it is possible to avoid wasteful consumption of the power supply 20 and to prevent the power supply 20 and the power supply line 18 from being in an overload state 22 and from being deteriorated or damaged.

According to a tenth aspect of the present invention, in the load control device according to the ninth aspect, the stop control means 12 comprises:
The load current 20a supplied to the load 22 during the stop control
A load current detecting unit 122 for detecting the current value of the load current 20a, and comparing the current value of the load current 20a detected by the load current detecting unit 122 with the specified value to determine whether the load current 20a has become equal to or less than the specified value. Current comparing and judging unit 12 for judging
4 and the load current 20a
Is less than the specified value and it is determined that the supply of the load current 20a is not necessary.
From the power supply line 18 and
Power supply interrupting unit 126 for interrupting supply of load current 20a to
The load control device 10 includes:

According to the tenth aspect of the present invention, in addition to the effect of the ninth aspect, the load supplied to the load 22 is provided by providing the load current detecting section 122 and the current comparing / determining section 124. The constant current value of the current 20a can be monitored at the time of stop control, and by providing the power cutoff unit 126, when the load current 20a at the time of stop control falls below the specified value, the load current 2a is reduced.
It is determined that the supply of the load current 20a is no longer necessary or the load 22 is abnormal, and the control for disconnecting the power supply 20 from the power supply line 18 and interrupting the supply of the load current 20a to the power supply line 18 can be executed. It has the effect of becoming.

According to the eleventh aspect of the present invention, the operation mode of the load 22 is selected by operating the ON-ON switch 16 and the load current 20a supplied from the power supply 20 via the power supply line 18 is set to the operation mode. The load 22 is switched to a corresponding current direction and applied to the load 22 to perform operation control. Based on position detection using a limit switch 222 incorporated in the load 22, the load current 20a is cut off and stop control of the load 22 is performed. In the load control device, control for cutting off the supply of the load current 20a to the power supply line 18 by disconnecting the power supply 20 from the power supply line 18 in response to the interruption of the load current 20a during the stop control of the load 22 The load control device 10 includes a stop control unit 12 that executes the following.

According to the eleventh aspect of the present invention, by providing such a stop control means 12, the load current 20 can be reduced by using the limit switch 222 built in the load 22.
The power supply line 18 between the limit switch 22 2 and the power supply 20 can be cut off from the power supply 20 at the same time as the power supply 20 can be cut off by cutting off the supply of a. . As a result, even when a short circuit accident or a pinch accident occurs in the power supply line 18 between the limit switch 22 2 and the power supply 20, wasteful consumption of the power supply 20 can be avoided. Unnecessary current and overcurrent can be prevented from flowing, and wasteful consumption of the power supply 20 can be avoided. The power supply 20 and the power supply line 18 can be prevented from being deteriorated or damaged due to the overload 22 state. This has the effect that it can be avoided.

According to a twelfth aspect of the present invention, in the load control device according to any one of the seventh to eleventh aspects, the operation control means 14 for executing the operation control includes the ON-state control circuit.
A switch state detector 142 for detecting the switch state of the ON switch 16, an operation mode determiner 144 for determining the operation mode according to the switch state, and a switch according to the operation mode determined by the operation mode determiner 144. A current direction switching unit 146 for switching a load current 20a supplied from the power supply 20 via the power supply line 18 to a current direction corresponding to the operation mode, and a load current having the current direction obtained by the current direction switching unit 146. The load control device 10 includes a load driving unit 148 that supplies 20a to the load 22.

According to the twelfth aspect of the invention, in addition to the effects of any one of the seventh to eleventh aspects, in addition to the provision of the switch state detection unit 142 and the operation mode determination unit 144, Operate the ON-ON switch 16 to load 2
2 operation mode can be selected.
, The load current 20a supplied from the power supply 20 via the power supply line 18 can be switched to a current direction according to the operation mode and given to the load 22 to perform the operation control, and the load drive unit 148 is provided. Depending on the load 2
2, the load current 20a is cut off based on the position detection using the limit switch 222 incorporated in the switch 2, and the stop control of the load 22 can be executed.

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a functional block diagram for explaining a first embodiment of the load control device of the present invention. FIG. 2
FIG. 2A is a timing chart for explaining the operation of the conventional load control device 10, and FIG. 2B is a timing chart for explaining the operation of the load control device 10 of FIG. .

The load control device 10 shown in FIG.
As shown in FIG. 2B, the user operates the ON-ON switch 16 to select the operation mode of the TV slider, which is the on-vehicle load 22, and the load current 20a supplied from the power supply 20 via the power supply line 18 (FIG. operating current shown in b),
The load current 20a is represented by the operating current 20a) is switched to a current direction corresponding to the operation mode, and is applied to the load 22 to execute the operation control. Based on the position detection using the limit switch 222 incorporated in the load 22, It has a function of interrupting the operating current 20a and executing stop control of the load 22.

Specifically, the load control device 10 is mounted on a vehicle such as a truck, a passenger car, or a lorry, and has an ON-ON switch 16 having an alternate function (hereinafter, ON-ON switch 16).
By operating the alternate switch 16), either the storage operation mode or the slide operation mode of the TV slider 22 is selected as shown in FIG. 2B, and the power supply line 18 (hereinafter referred to as power supply Line 1
8 is represented by a wire harness 18).
0 (hereinafter, power supply 20 is represented by battery power supply 20)
Is switched to a current direction corresponding to the storage operation mode or the slide operation mode and applied to the motor (M in the figure) to select the rotation direction of the motor M (that is, the normal rotation direction or the reverse rotation direction). And a stop control means 12 having a function of executing the operation control and stopping control of the rotation of the motor M by interrupting the operation current 20a based on the position detection using the limit switch 222 incorporated in the TV slider 22. The operation control means 14 having the function of performing the operation is mainly configured. It is desirable that such stop control means 12 and operation control means 14 be realized using a CPU that executes a program code of a load control method described later.

Next, the stop control means 12 will be described.

The stop control means 12 includes a load current detecting section 12
2, a current comparison / determination section 124 and a power cutoff section 126.

The load current detector 122 detects T during stop control.
It has a function of detecting the current value of the operating current 20a supplied to the V slider 22.
It is desirable to use a detection resistance element 122 provided in series with the battery power supply 20 in the immediate vicinity of the battery power supply 20 between the 0-wire harness 18. Hereinafter, the load current detection unit 122 will be represented by the detection resistance element 122.

The current comparison / judgment unit 124 detects the detection resistance element 1
22 has a function of determining whether the current value of the operating current 20a detected in step 22 is zero, and detects a voltage between both ends of the detecting resistor element 122 generated when the operating current 20a flows through the detecting resistor element 122. It is desirable to use 124. Hereinafter, the current comparison / determination unit 124 is represented by the comparator 124.

When the comparator 124 determines that the current value of the operating current 20a has become zero and the supply of the voltage 20a across the load current has been stopped,
It has a function of disconnecting the battery power supply 20 from the wire harness 18 and interrupting the supply of the operating current 20a to the wire harness 18, and in series with the detection resistance element 122 immediately near the battery power supply 20 between the battery power supply 20 and the wire harness 18. ON / OFF from CPU
ON / OFF according to signal RLY1 (see FIG. 2B)
It is desirable to use a relay that operates and connects / disconnects the wire harness 18 and the battery power supply 20. Hereinafter, the power cutoff unit 126 will be represented by the relay 126.

That is, by providing the detection resistance element 122 and the comparator 124, the constant current value of the operating current 20a supplied to the TV slider 22 can be monitored at the time of stop control, and by providing the relay 126, at the time of stop control. When the supply of the operating current 20a is stopped, the battery power supply 20 is disconnected from the wire harness 18 and the control to cut off the supply of the operating current 20a to the wire harness 18 can be executed. As a result,
Even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, wasteful consumption of the battery power supply 20 can be avoided, and the battery power supply 20 and the wire harness 1 can be avoided.
8 can be prevented from flowing an unnecessary current or an overcurrent, the battery power supply 20 can be prevented from being wasted, and the battery power supply 20 and the wire harness 18 are overloaded to cause deterioration and damage. It is possible to avoid the problem.

The stop control means 12 monitors the value of the operating current 20a supplied to the TV slider 22 at the time of the stop control, and at the same time, when the operating current 20a at the time of the stop control becomes equal to or less than the specified value. Is determined to be unnecessary or an abnormality has occurred in the TV slider 22,
The battery power supply 20 may be disconnected from the wire harness 18 so as to execute a control for interrupting the supply of the operating current 20a to the wire harness 18. In this case, the detection resistance element 122 detects the current value of the operating current 20a supplied to the TV slider 22 during the stop control,
The comparator 124 compares the current value of the operating current 20a detected by the detection resistor element 122 with the specified value to determine whether the operating current 20a has become equal to or less than the specified value. 20a
Is less than or equal to the specified value, and it is determined that the supply of the operating current 20a is unnecessary, the battery power supply 20 is disconnected from the wire harness 18 and the supply of the operating current 20a to the wire harness 18 is cut off. That is,
By providing the detection resistance element 122 and the comparator 124, the operating current 20a supplied to the TV slider 22
Can be monitored at the time of the stop control, and by providing the relay 126, when the operation current 20a at the time of the stop control becomes equal to or less than the specified value, the supply of the operation current 20a becomes unnecessary or the TV slider 22 It is determined that an abnormality has occurred, so that the battery power supply 20 can be disconnected from the wire harness 18 and the control to cut off the supply of the operating current 20a to the wire harness 18 can be executed. As a result, even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, the battery power supply 2
0 can be avoided, and unnecessary current and overcurrent can be prevented from flowing through the battery power supply 20 and the wire harness 18, and unnecessary consumption of the battery power supply 20 can be avoided. It is possible to prevent the wire harness 18 from being overloaded and from being deteriorated or damaged.

Next, the operation control means 14 will be described.

The operation control means 14 includes a switch state detection section 142, an operation mode determination section 144, and a current direction switching section 1
46 and a load driving section 148.

The switch state detector 142 is ON-ON
Switch state of the alternate switch 16 (that is, whether the switch has been switched to the storage operation mode side or the slide operation mode side, see FIG. 2B).
It is desirable to realize this using a CPU that has a function of detecting a load control method and executes a program code of a load control method described later.

The operation mode judging section 144 has a function of judging either the storage operation mode or the slide operation mode depending on whether the operation mode is switched to the storage operation mode or the slide operation mode. It is desirable to realize this using a CPU which has a program code for a load control method described later.

The current direction switching unit 146 stores the operating current 20a supplied from the battery power supply 20 via the wire harness 18 in either the storage operation mode or the slide operation mode according to the operation mode obtained by the operation mode determination unit 144. And has a function of switching to a current direction according to the current, and performs an ON / OFF operation in accordance with ON / OFF signals RLY2 and 3 (see FIG. 2B) from the CPU to connect the wire harness 18 and the battery power supply 20. It is desirable to use a relay that turns off / on. Hereinafter, the current direction switching unit 146 will be represented by a relay 146 (power supply Vcc is used as a driving power supply).

The load driving section 148 has a function of supplying an operating current 20a having the current direction obtained by the relay 146 to the motor M of the TV slider 22, and uses a CPU for executing a program code of a load control method described later. It is desirable to realize it.

That is, by providing the switch state detecting section 142 and the operation mode judging section 144, the ON-ON alternate switch 16 is operated and the storage operation mode of the TV slider 22 or the slide operation mode as shown in FIG. Any of the operation modes can be selected, and by providing the relay 146, the operation current 20a supplied from the battery power supply 20 via the wire harness 18 is changed in the current direction according to either the storage operation mode or the slide operation mode. The operation control can be executed by giving the switching to the TV slider 22 to perform the operation control, and by providing the load driving unit 148, the operation current 20a is cut off based on the position detection using the limit switch 222 built in the TV slider 22, and the TV is controlled. There is an effect that the stop control of the slider 22 can be executed.

Subsequently, the load control device 10 of the first embodiment
An embodiment of the load control method executed in the embodiment will be described.

In this load control method, the ON-ON alternate switch 16 is operated to select either the storage operation mode or the slide operation mode of the TV slider 22, and the TV is operated.
The value of the operating current 20a supplied to the slider 22 is monitored during the stop control, and at the same time, the operating current 20a during the stop control is monitored.
When the supply of a is stopped, the battery power supply 20 is disconnected from the wire harness 18 to perform a control to cut off the supply of the operating current 20a to the wire harness 18, and the ON-ON alternate switch 16 is operated. Operation of the TV slider 22 to select either the storage operation mode or the slide operation mode, and the operation current 20 supplied from the battery power supply 20 via the wire harness 18.
The operation control process is mainly performed by switching a in the current direction according to either the storage operation mode or the slide operation mode and applying the switch to the TV slider 22 to execute the operation control.

Next, the stop control step will be described.

The stop control step is described by a program code executable by the CPU, and has a load current detection step, a current comparison / judgment step, and a power cutoff step.

In the load current detection step, the detection resistance element 122
This is a processing step for detecting the current value of the operating current 20a supplied to the TV slider 22 at the time of stop control, which is described in a program code executable by the CPU described above.

In the current comparison / determination step, the comparator 124
This is a processing step for determining whether or not the current value of the operating current 20a detected in the load current detection step has become zero, which is described in a program code executable by the CPU using the above.

The power shut-off step is described by a program code executable by the CPU using the relay 126. In the current comparing step, the current value of the operating current 20a becomes zero and the supply of the operating current 20a is stopped. If it is determined that the operation has been performed, the battery power source 20 is disconnected from the wire harness 18 and the operating current 2
This is a processing step of interrupting the supply of Oa.

That is, by providing the load current detecting step and the current comparing and judging step, the constant current value of the operating current 20a supplied to the TV slider 22 can be monitored during the stop control.
By providing a power cut-off step, when the supply of the operating current 20a during the stop control is stopped, the wire harness 18
Thus, it is possible to execute a control of disconnecting the battery power supply 20 from the power supply and cutting off the supply of the operating current 20a to the wire harness 18.

The stop control step is performed during the stop control by the TV.
A load current detecting step of detecting a current value of the operating current 20a supplied to the slider 22, and comparing the current value of the operating current 20a detected in the load current detecting step with a specified value to reduce the operating current 20a to a specified value or less. The wire harness 18 is provided when the operating current 20a becomes equal to or less than a specified value and the supply of the operating current 20a becomes unnecessary.
It is also possible to use a power cutoff step of cutting off the supply of the operating current 20a to the wire harness 18 by disconnecting the battery power supply 20 from the power supply. That is, by providing the load current detection step and the current comparison / determination step, the constant current value of the operating current 20a supplied to the TV slider 22 can be monitored at the time of stop control, and by providing the power supply cutoff step, When the operating current 20a becomes equal to or less than the specified value, it is determined that the supply of the operating current 20a becomes unnecessary or the TV slider 22 becomes abnormal, and the battery power supply 20 is disconnected from the wire harness 18 to the wire harness 18. Thus, it is possible to execute the control for interrupting the supply of the operating current 20a.

Next, the operation control process will be described.

The operation control step is described by a program code executable by the CPU, and includes a switch state detection step, an operation mode determination step, a current direction switching step, and a load driving step.

The switch state detecting step is described by a program code which can be executed by the CPU.
This is a processing step of detecting the switch state of the ON alternate switch 16.

The operation mode determination step is a processing step which is described in a program code executable by the CPU and determines either the storage operation mode or the slide operation mode according to the switch state.

The current direction switching step is described by a program code executable by the CPU, and is described by a program code executable by the CPU. This is a processing step of switching the operating current 20a supplied from the battery power supply 20 via the wire harness 18 to a current direction according to either the storage operation mode or the slide operation mode according to any of the slide operation modes.

The load driving step is described in a program code executable by the CPU using the relay 146, and supplies the operating current 20a having the current direction obtained in the current direction switching step to the TV slider 22. It is a process.

That is, by providing the switch state detection step and the operation mode determination step, the ON-ON alternate switch 16 can be operated to select either the storage operation mode or the slide operation mode of the TV slider 22, and the current direction can be selected. By providing the switching step, the operation current 20a supplied from the battery power supply 20 via the wire harness 18 is switched to a current direction corresponding to either the storage operation mode or the slide operation mode, and is applied to the TV slider 22 to operate. The control can be executed, and by providing a load driving step, the operation current 20a is cut off based on the position detection using the limit switch 222 incorporated in the TV slider 22 so that the stop control of the TV slider 22 can be executed. It has the effect of becoming. Next, a second embodiment will be described.

Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 3 shows a second embodiment of the load control device 10 according to the present invention.
FIG. 2 is a functional block diagram for describing the embodiment. Note that the same parts as those already described in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

The load control device 10 shown in FIG.
As shown in (b), the ON-ON switch 16 is operated to select the operation mode of the ventilation fan damper 22 which is the vehicle-mounted load 22, and the operating current 20a (from the power supply 20 via the power supply line 18) is selected. The operating current shown in FIG. 2B is switched to the current direction corresponding to the operation mode to change the load 2
2, and has a function of interrupting the operating current 20a based on position detection using a limit switch 222 incorporated in the load 22 to execute stop control of the load 22.

Specifically, the load control device 10 is mounted on vehicles such as trucks, passenger cars, lorries, etc.
By operating the alternate switch 16 to select either the open operation mode or the close operation mode of the ventilation fan damper 22 as already shown in FIG. 2B, the operation supplied from the battery power supply 20 via the wire harness 18 The current 20a is switched to a current direction corresponding to the opening operation mode or the closing operation mode and is supplied to the motor (M in the figure) to select the rotation direction (ie, forward rotation direction or reverse rotation direction) of the motor M to perform operation control. A CPU having a function of executing the control and a CPU having a function of executing a stop control of the rotation of the motor M by interrupting the operating current 20a based on the position detection using the limit switch 222 incorporated in the ventilation fan damper 22. It is configured.

Next, the operation of the stop control means 12 (CPU) will be described.

The CPU is composed mainly of a detection resistance element 122, a comparator 124 and a relay 126.

The detection resistance element 122 detects the current value of the operating current 20a supplied to the ventilation fan damper 22 during the stop control.

The comparator 124 has a detection resistance element 122
It is determined whether or not the current value of the operating current 20a detected in has become zero.

The relay 126 disconnects the battery power supply 20 from the wire harness 18 when the comparator 124 determines that the current value of the operating current 20a has become zero and the supply of the load current voltage 20a has been stopped. 18 has a function of interrupting the supply of the operating current 20a to the battery power supply 20 and the wire harness 18 and is close to the battery power supply 20 in the vicinity of the detection resistor element 1.
22. The wiring harness 18 and the battery power supply 20 are connected / disconnected by performing ON / OFF operations in response to an ON / OFF signal RLY1 (see FIG. 2B) from the CPU.

That is, by providing the detection resistance element 122 and the comparator 124, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored at the time of stop control. When the supply of the operating current 20a is stopped, the battery power supply 20 is disconnected from the wire harness 18 and the control to cut off the supply of the operating current 20a to the wire harness 18 can be executed. As a result,
Even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, wasteful consumption of the battery power supply 20 can be avoided, and the battery power supply 20 and the wire harness 1 can be avoided.
8, it is possible to avoid unnecessary current or overcurrent from flowing to the battery 8, and it is possible to avoid wasteful consumption of the battery power supply 20, and the battery power supply 20 and the wire harness 18 become the state of the over-ventilation fan damper 22 and deteriorate or damage. Is produced.

The CPU monitors the value of the operating current 20a supplied to the ventilation fan damper 22 during the stop control, and at the same time, supplies the operating current 20a when the operating current 20a during the stop control becomes equal to or less than a specified value. It may be determined that the battery power supply 20 is disconnected from the wire harness 18 and the supply of the operating current 20a to the wire harness 18 is interrupted by determining that the battery is no longer needed or that an abnormality has occurred in the ventilation fan damper 22. good. In this case, the detection resistance element 122 detects the current value of the operation current 20a supplied to the ventilation fan damper 22 at the time of stop control, and the comparator 124 detects the current value of the operation current 20a detected by the detection resistance element 122 and the specified value. To determine whether the operating current 20a has become equal to or less than a specified value.
When it is determined in the comparator 124 that the operating current 20a becomes equal to or less than the specified value and the supply of the operating current 20a becomes unnecessary, the battery power supply 20 is disconnected from the wire harness 18 to supply the operating current 20a to the wire harness 18. Will be shut off. That is, by providing the detection resistance element 122 and the comparator 124, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored at the time of stop control, and by providing the relay 126, the operating current at the time of stop control can be monitored. It is determined that the supply of the operating current 20a becomes unnecessary when the value of the operating current 20a becomes equal to or less than the specified value, or that an abnormality has occurred in the ventilation fan damper 22. There is an effect that control for shutting off the supply of 20a can be executed. As a result, even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, wasteful consumption of the battery power supply 20 can be avoided, and the battery power supply 20 and the wire harness 18 can be prevented. It is possible to prevent unnecessary current or overcurrent from flowing into the battery power supply 20, and to avoid wasteful consumption of the battery power supply 20, and to prevent the battery power supply 20 and the wire harness 18 from being consumed.
However, there is an effect that it is possible to avoid the occurrence of deterioration and damage due to the state of the hyperventilation fan damper 22.

Next, the operation of the operation control means 14 (CPU) will be described.

The CPU detects the switch state of the ON-ON alternate switch 16 (that is, whether the switch has been switched to the close operation mode side or the open operation mode side, see FIG. 2B).

The CPU determines either the open operation mode or the close operation mode depending on whether the switch is switched to the close operation mode or the open operation mode.

The relay 146 (drive power supply = power supply Vcc)
According to the operation mode determined by the CPU, the operation current 20a supplied from the battery power supply 20 via the wire harness 18 is switched to a current direction corresponding to either the open operation mode or the close operation mode.

The CPU has a function of supplying an operating current 20a having the current direction obtained by the relay 146 to the motor M of the ventilation fan damper 22, and is realized by using a CPU that executes a program code of a load control method described later. It is desirable.

That is, by providing a CPU, ON-
By operating the ON alternate switch 16, either the open operation mode or the close operation mode of the ventilation fan damper 22 can be selected as already shown in FIG. 2B, and by providing the relay 146, through the wire harness 18. The operating current 20a supplied from the battery power source 20 can be switched to a current direction corresponding to either the open operation mode or the closed operation mode and given to the ventilation fan damper 22 to perform the operation control. The operating current 20a is cut off based on the position detection using the limit switch 222 built in the damper 22, and the ventilation fan damper 22 is turned off.
This makes it possible to execute the stop control of the vehicle.

Subsequently, the load control device 10 of the second embodiment
An embodiment of the load control method executed in the embodiment will be described.

In this load control method, the ON-ON alternate switch 16 is operated to select either the open operation mode or the close operation mode of the ventilation fan damper 22, and the value of the operating current 20a supplied to the ventilation fan damper 22 is stopped. Stop control that monitors at the time of control and executes control to disconnect the battery power supply 20 from the wire harness 18 and cut off the supply of the operation current 20a to the wire harness 18 when the supply of the operation current 20a during the stop control is stopped. Operating the ON-ON alternate switch 16 to select either the open operation mode or the closed operation mode of the ventilator damper 22 to reduce the operating current 20a supplied from the battery power supply 20 via the wire harness 18 to the open operation mode. Or switch to the current direction according to either the closed operation mode or the ventilation fan damper It is constructed around the operation control step of executing the operation control given to 2.

Next, the stop control step will be described.

The stop control step is described by a program code executable by the CPU, and has a load current detection step, a current comparison / judgment step, and a power cutoff step.

In the load current detection step, the detection resistance element 122
This is a processing step for detecting the current value of the operating current 20a supplied to the ventilation fan damper 22 at the time of stop control, which is described in a program code executable by the CPU using the above.

In the current comparison / determination step, the comparator 124
This is a processing step for determining whether or not the current value of the operating current 20a detected in the load current detection step has become zero, which is described in a program code executable by the CPU using the above.

The power cut-off step is described by a program code executable by the CPU using the relay 126. In the current comparison step, the current value of the operating current 20a becomes zero and the supply of the operating current 20a is stopped. If it is determined that the operation has been performed, the battery power source 20 is disconnected from the wire harness 18 and the operating current 2
This is a processing step of interrupting the supply of Oa.

That is, by providing the load current detecting step and the current comparing and judging step, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored during the stop control.
By providing a power cut-off step, when the supply of the operating current 20a during the stop control is stopped, the wire harness 18
Thus, it is possible to execute a control of disconnecting the battery power supply 20 from the power supply and cutting off the supply of the operating current 20a to the wire harness 18.

The stop control step includes a load current detection step of detecting a current value of the operation current 20a supplied to the ventilation fan damper 22 during the stop control, and a current value of the operation current 20a detected in the load current detection step. A current comparison determination step for comparing whether the operating current 20a is equal to or less than a specified value, and a supply of the operating current 20a is not required because the operating current 20a is equal to or less than the specified value in the current comparing step. If it is determined that the wire harness 18
It is also possible to use a power cutoff step of cutting off the supply of the operating current 20a to the wire harness 18 by disconnecting the battery power supply 20 from the power supply. That is, by providing the load current detection step and the current comparison / determination step, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored at the time of stop control. When the operating current 20a becomes equal to or less than the specified value, it is determined that the supply of the operating current 20a is not necessary or the ventilator damper 22 has an abnormality. Thus, it is possible to execute the control for interrupting the supply of the operating current 20a.

Next, the operation control process will be described.

The operation control step is described by a program code executable by the CPU and includes a switch state detecting step, an operation mode determining step, a current direction switching step, and a load driving step.

The switch state detecting step is described by a program code executable by the CPU described above.
This is a processing step of detecting the switch state of the ON alternate switch 16.

The operation mode determination step is a processing step which is described in a program code executable by the CPU and determines either the open operation mode or the close operation mode according to the switch state.

The current direction switching step is described by a program code executable by the CPU, and is described by a program code executable by the CPU. Wire harness 1 according to any of the closing operation modes
8 is a processing step of switching the operating current 20a supplied from the battery power supply 20 via the power supply 8 to a current direction corresponding to either the open operation mode or the close operation mode.

The load driving step is described by a program code executable by the CPU using the relay 146, and supplies the operating current 20a having the current direction obtained in the current direction switching step to the ventilation fan damper 22. It is a process.

That is, by providing the switch state detection step and the operation mode determination step, the ON-ON alternate switch 16 can be operated to select either the open operation mode or the close operation mode of the ventilation fan damper 22, and the current direction By providing a switching step, the wire harness 18
Operating current 2 supplied from battery power supply 20 via
0a can be switched to a current direction corresponding to either the open operation mode or the closed operation mode and given to the ventilation fan damper 22 to perform an operation control, and by providing a load driving step, a limit switch built in the ventilation fan damper 22 is provided. 222
In this case, it is possible to cut off the operating current 20a on the basis of the position detection using the control command, and execute the stop control of the ventilation fan damper 22.

Next, a third embodiment of the present invention will be described with reference to the drawings.

FIG. 4 shows a third embodiment of the load control device 10 according to the present invention.
FIG. 2 is a functional block diagram for describing the embodiment. The same parts as those already described in the first embodiment or the second embodiment are denoted by the same reference numerals, and redundant description will be omitted.

The load control device 10 shown in FIG. 4 is different from the load control device 10 of the second embodiment in that the detection resistance element 122,
IP function for comparator 124 and relay 146
It is characterized in that it is replaced with an S (intelligent power source) 24.

Next, the stop control operation of the CPU will be described.

The IPS 24 becomes operable when receiving a control signal from the CPU, detects the current value of the operating current 20a supplied to the ventilation fan damper 22 at the time of stop control, and sets the detected current value of the operating current 20a to zero. Is determined.

The relay 126 operates in response to the load open signal from the IPS 24 when the IPS 24 determines that the current value of the operating current 20 a has become zero and the supply of the voltage 20 a across the load current has been stopped.
And the supply of the operating current 20a to the wire harness 18 is cut off.

That is, by providing the IPS 24, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored at the time of stop control, and by providing the relay 126, the supply of the operating current 20a at the time of stop control can be monitored. When the power supply is stopped, the battery power supply 20 is disconnected from the wire harness 18 so that control for interrupting the supply of the operating current 20a to the wire harness 18 can be executed. As a result, even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, wasteful consumption of the battery power supply 20 can be avoided, and the battery power supply 2
0 and the wire harness 18 can be prevented from flowing an unnecessary current or an overcurrent, the battery power supply 20 can be prevented from being wasted, and the battery power supply 20 and the wire harness 18 are in the state of the over-ventilation fan damper 22. Thus, it is possible to avoid the occurrence of deterioration and damage.

The CPU monitors the value of the operating current 20a supplied to the ventilation fan damper 22 at the time of the stop control, and at the same time, when the operating current 20a at the time of the stop control falls below the specified value, the supply of the operating current 20a is stopped. It may be determined that the battery power supply 20 is disconnected from the wire harness 18 and the supply of the operating current 20a to the wire harness 18 is interrupted by determining that the battery is no longer needed or that an abnormality has occurred in the ventilation fan damper 22. good. In this case, IPS2
4 detects the current value of the operating current 20a supplied to the ventilation fan damper 22 during the stop control, and detects the detected operating current 20a.
The relay 126 determines whether the operating current 20a has become equal to or less than the specified value by comparing the current value with the specified value. Is determined in IPS24,
By disconnecting the battery power supply 20 from the wire harness 18, the supply of the operating current 20a to the wire harness 18 is cut off. That is, by providing the IPS 24, the operating current 20a supplied to the ventilation fan damper 22
Can be monitored at the time of stop control, and by providing the relay 126, when the operation current 20a at the time of the stop control becomes lower than the specified value, the supply of the operation current 20a becomes unnecessary or the ventilation fan damper 22 It is determined that an abnormality has occurred, so that the battery power supply 20 can be disconnected from the wire harness 18 and the control to cut off the supply of the operating current 20a to the wire harness 18 can be executed. As a result, even if a short circuit accident or a pinch accident occurs in the wire harness 18 between the limit switch 222 and the battery power supply 20, the battery power supply 2
0 can be avoided, and unnecessary current and overcurrent can be prevented from flowing through the battery power supply 20 and the wire harness 18, and unnecessary consumption of the battery power supply 20 can be avoided. There is an effect that the wire harness 18 can be prevented from being deteriorated or damaged due to the over-ventilation fan damper 22 state.

Next, the operation control operation of the CPU will be described.

The CPU detects the switch state of the ON-ON alternate switch 16 (that is, whether the switch has been switched to the close operation mode side or the open operation mode side, see FIG. 2B).

The CPU determines either the open operation mode or the close operation mode depending on whether the switch has been switched to the close operation mode or the open operation mode.

The IPS 24 switches the operating current 20a supplied from the battery power source 20 via the wire harness 18 to a current direction corresponding to either the open operation mode or the close operation mode in accordance with the operation mode obtained by the CPU. ing.

The CPU has a function of supplying the operating current 20a having the current direction determined by the IPS 24 to the motor M of the ventilation fan damper 22, and is realized by using a CPU that executes a program code of a load control method described later. Is desirable.

That is, by providing a CPU, ON-
By operating the ON alternate switch 16, it is possible to select either the open operation mode or the close operation mode of the ventilation fan damper 22 as already shown in FIG. 2B, and by providing the IPS 24, through the wire harness 18. The operating current can be controlled by switching the operating current 20a supplied from the battery power source 20 to a current direction corresponding to either the open operation mode or the closed operation mode and giving the switch to the ventilation fan damper 22,
By providing the CPU, the operation current 20a is cut off based on the position detection using the limit switch 222 built in the ventilation fan damper 22, and the stop control of the ventilation fan damper 22 can be executed.

Subsequently, the load control device 10 of the third embodiment
An embodiment of the load control method executed in the embodiment will be described.

In the present load control method, the ON-ON alternate switch 16 is operated to select either the open operation mode or the close operation mode of the ventilation fan damper 22, and the value of the operating current 20a supplied to the ventilation fan damper 22 is stopped. Stop control that monitors at the time of control and executes control to disconnect the battery power supply 20 from the wire harness 18 and cut off the supply of the operation current 20a to the wire harness 18 when the supply of the operation current 20a during the stop control is stopped. Operating the ON-ON alternate switch 16 to select either the open operation mode or the closed operation mode of the ventilator damper 22 to reduce the operating current 20a supplied from the battery power supply 20 via the wire harness 18 to the open operation mode. Or switch to the current direction according to either the closed operation mode or the ventilation fan damper It is constructed around the operation control step of executing the operation control given to 2.

Next, the stop control step will be described.

The stop control step is described by a program code executable by the CPU, and has a load current detection step, a current comparison / determination step, and a power cutoff step.

The load current detecting step is described in a program code which controls the IPS 24 and can be executed by the CPU, and detects the current value of the operating current 20a supplied to the ventilation fan damper 22 during the stop control. It is.

The current comparison / determination step is described by a program code that can be executed by the CPU by controlling the IPS 24, and determines whether or not the current value of the operating current 20a detected in the load current detection step has become zero. This is a processing step for determination.

The power cut-off step is described by a program code executable by the CPU using the relay 126. In the current comparison step, the current value of the operating current 20a becomes zero and the supply of the operating current 20a is stopped. If it is determined that the operation has been performed, the battery power source 20 is disconnected from the wire harness 18 and the operating current 2
This is a processing step of interrupting the supply of Oa.

That is, by providing the load current detecting step and the current comparing and judging step, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored during the stop control.
By providing a power cut-off step, when the supply of the operating current 20a during the stop control is stopped, the wire harness 18
Thus, it is possible to execute a control of disconnecting the battery power supply 20 from the power supply and cutting off the supply of the operating current 20a to the wire harness 18.

The stop control step includes a load current detection step of detecting a current value of the operation current 20a supplied to the ventilation fan damper 22 during the stop control, and a current value of the operation current 20a detected in the load current detection step. A current comparison determination step for comparing whether the operating current 20a is equal to or less than a specified value, and a supply of the operating current 20a is not required because the operating current 20a is equal to or less than the specified value in the current comparing step. If it is determined that the wire harness 18
It is also possible to use a power cutoff step of cutting off the supply of the operating current 20a to the wire harness 18 by disconnecting the battery power supply 20 from the power supply. That is, by providing the load current detection step and the current comparison / determination step, the constant current value of the operating current 20a supplied to the ventilation fan damper 22 can be monitored at the time of stop control. When the operating current 20a becomes equal to or less than the specified value, it is determined that the supply of the operating current 20a is not required or the ventilator damper 22 has an abnormality, and the battery power supply 20 is disconnected from the wire harness 18 to the wire harness 18. Thus, it is possible to execute the control for interrupting the supply of the operating current 20a.

Next, the operation control process will be described.

The operation control step is described by a program code executable by the CPU, and includes a switch state detection step, an operation mode determination step, a current direction switching step, and a load driving step.

The switch state detecting step is described by a program code which can be executed by the CPU described above.
This is a processing step of detecting the switch state of the ON alternate switch 16.

The operation mode determination step is a processing step which is described in a program code executable by the CPU and determines either the open operation mode or the close operation mode according to the switch state.

The current direction switching step is described by a program code that can be executed by the CPU, and is described by a program code that can be executed by the CPU. Wire harness 1 according to any of the closing operation modes
8 is a processing step of switching the operating current 20a supplied from the battery power supply 20 via the power supply 8 to a current direction corresponding to either the open operation mode or the close operation mode.

The load driving step is a program for controlling the IPS 24 and describing the program code executable by the CPU, and supplying the operating current 20 a having the current direction obtained in the current direction switching step to the ventilation fan damper 22. It is a process.

That is, by providing the switch state detection step and the operation mode determination step, the ON-ON alternate switch 16 can be operated to select either the open operation mode or the close operation mode of the ventilation fan damper 22, and the current direction can be selected. By providing a switching step, the wire harness 18
Operating current 2 supplied from battery power supply 20 via
0a can be switched to a current direction corresponding to either the open operation mode or the closed operation mode and given to the ventilation fan damper 22 to perform an operation control, and by providing a load driving step, a limit switch built in the ventilation fan damper 22 is provided. 222
In this case, it is possible to cut off the operating current 20a on the basis of the position detection using the control command, and execute the stop control of the ventilation fan damper 22.

[0139]

According to the first aspect of the present invention, the power supply and the load can be cut off by cutting off the supply of the load current using the limit switch built in the load. There is an effect that the power supply line to the power supply can be cut off from the power supply.
As a result, even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current or overcurrent in the power supply or the power supply line can be avoided. Is prevented from flowing, wasteful consumption of the power supply can be avoided, and deterioration or damage due to the power supply or the power supply line being overloaded can be avoided.

According to the invention described in claim 2, according to claim 1
In addition to the effects described in the above, by providing a load current detection step and a current comparison and determination step, the constant current value of the load current supplied to the load can be monitored during stop control, and by providing a power-off step, When the supply of the load current at the time of the stop control is stopped, the power can be cut off from the power supply line to execute the control of cutting off the supply of the load current to the power supply line.

According to the third aspect of the present invention, the supply of the load current can be cut off by using the limit switch built in the load so that the power supply and the load can be cut off. Between the power supply lines can be cut off from the power supply. As a result, even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current and overcurrent in the power supply and the power supply line can be avoided. Is prevented from flowing, wasteful consumption of the power supply can be avoided, and deterioration or damage due to the power supply or the power supply line being overloaded can be avoided.

According to the invention described in claim 4, according to claim 3,
In addition to the effects described in the above, by providing a load current detection step and a current comparison and determination step, the constant current value of the load current supplied to the load can be monitored during stop control, and by providing a power-off step, When the load current during the stop control falls below the specified value, it is determined that supply of the load current is no longer necessary or that an abnormality has occurred in the load.The power supply line is disconnected from the power supply line and the load current to the power supply line is determined. This makes it possible to execute the control for shutting off the supply of water.

According to the fifth aspect of the present invention, the supply of the load current can be cut off by using the limit switch built in the load, so that the power supply and the load can be cut off. Between the power supply lines can be cut off from the power supply. As a result, even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current and overcurrent in the power supply and the power supply line can be avoided. Is prevented from flowing, wasteful consumption of the power supply can be avoided, and deterioration or damage due to the power supply or the power supply line being overloaded can be avoided.

According to the invention set forth in claim 6, according to claim 1,
In addition to the effects described in any one of (5) to (5), by providing a switch state detection step and an operation mode determination step, an operation mode of a load can be selected by operating an ON-ON switch, and a current direction switching step By providing
A load current supplied from a power supply via a power supply line can be switched in a current direction according to an operation mode and applied to a load to perform an operation control. By providing a load driving step, a limit switch built in the load is provided. This makes it possible to cut off the load current based on the position detection using the command and execute the stop control of the load.

According to the seventh aspect of the present invention, by providing such a stop control means, the supply of the load current is cut off by using the limit switch built in the load, and the power supply and the load are connected. At the same time, the power supply line between the limit switch and the power supply can be cut off from the power supply. As a result, even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current or overcurrent in the power supply or the power supply line can be avoided. Is prevented from flowing, wasteful consumption of the power supply can be avoided, and deterioration or damage due to the power supply or the power supply line being overloaded can be avoided.

According to the invention of claim 8, according to claim 7,
In addition to the effects described in the above, by providing the load current detection unit and the current comparison and determination unit, it is possible to monitor the constant current value of the load current supplied to the load at the time of stop control, by providing the power cutoff unit, When the supply of the load current at the time of the stop control is stopped, the power can be cut off from the power supply line to execute the control of cutting off the supply of the load current to the power supply line.

According to the ninth aspect of the present invention, by providing such a stop control means, the supply of the load current is interrupted by using a limit switch built in the load, and the power supply and the load are connected. At the same time, the power supply line between the limit switch and the power supply can be cut off from the power supply. As a result, even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current or overcurrent in the power supply or the power supply line can be avoided. Is prevented from flowing, wasteful consumption of the power supply can be avoided, and deterioration or damage due to the power supply or the power supply line being overloaded can be avoided.

According to the tenth aspect of the present invention, in addition to the effect of the ninth aspect, the provision of the load current detecting section and the current comparing and judging section makes it possible to determine the load current supplied to the load. The current value can be monitored at the time of stop control, and by providing a power cut-off unit, when the load current at the time of stop control falls below the specified value, supply of the load current becomes unnecessary or an abnormality occurs in the load. This makes it possible to execute the control of disconnecting the power supply from the power supply line and cutting off the supply of the load current to the power supply line.

According to the eleventh aspect of the present invention, by providing such a stop control means, the supply of the load current is cut off by using a limit switch built in the load, and the power supply and the load are connected. At the same time, the power supply line between the limit switch and the power supply can be cut off from the power supply. As a result,
Even if a short circuit accident or pinching accident occurs in the power supply line between the limit switch and the power supply, unnecessary consumption of the power supply can be avoided, and unnecessary current or overcurrent may flow in the power supply or the power supply line. That is, the power supply and the power supply line can be prevented from being overloaded and deteriorated or damaged.

According to the twelfth aspect of the invention, in addition to the effects of any one of the seventh to eleventh aspects, the ON-state is provided by providing a switch state detection unit and an operation mode determination unit. The operation mode of the load can be selected by operating the ON switch, and by providing the current direction switching unit, the load current supplied from the power supply via the power supply line is switched to the current direction according to the operation mode and the load is switched to the load. The effect of being able to execute the operation control by giving the load drive unit and interrupting the load current based on the position detection using the limit switch built into the load to execute the stop control of the load. To play.

[Brief description of the drawings]

FIG. 1 is a functional block diagram illustrating a first embodiment of a load control device according to the present invention.

FIG. 2A is a timing chart for explaining the operation of a conventional load control device, and FIG. 2B is a timing chart for explaining the operation of the load control device of FIG. .

FIG. 3 is a functional block diagram for explaining a load control device according to a second embodiment of the present invention.

FIG. 4 is a functional block diagram illustrating a load control device according to a third embodiment of the present invention.

FIG. 5 (a) is a functional block diagram for explaining a conventional load control device for controlling a TV slider as a load, and FIG. 5 (b) is a conventional load control for controlling a ventilation fan damper as a load. It is a functional block diagram for explaining a device.

[Description of Signs] 10 Load control device 12 Stop control means (CPU) 122 Load current detection section (detection resistance element) 124 Current comparison determination section (comparator) 126 Power cutoff section (relay) 14 Operation control means (CPU) 142 switch State detection unit (CPU) 144 Operation mode determination unit (CPU) 146 Current direction switching unit (relay) 148 Load drive unit (CPU) 16 ON-ON switch 18 Power supply line 20 Power supply (battery) 20a Load current 22 Load (TV) Slider, exhaust damper) 222 Limit switch

Claims (12)

[Claims] An operating mode of a load is selected by operating an ON-ON switch, and a load current supplied from a power supply via a power supply line is switched to a current direction corresponding to the operating mode and applied to the load for operation. A load control method for executing control and performing load stop control by interrupting a load current based on position detection using a limit switch built into the load, wherein the stop of the value of the load current supplied to the load is performed. Stop control that monitors at the time of control and executes control to cut off the supply of load current to the power supply line by disconnecting the power supply from the power supply line when the supply of load current during the stop control is stopped. A load control method, comprising: 2. The stop control step includes: a load current detection step of detecting a current value of a load current supplied to a load at the time of the stop control; and a current value of the load current detected in the load current detection step becomes zero. The current value of the load current becomes zero and the supply of the load current is stopped in the current comparison step, and the power supply line supplies the power from the power supply line. The load control method according to claim 1, further comprising: a power cutoff step of cutting off the supply of the load current to the power supply line by disconnecting the power supply line. 3. An operation is performed by operating an ON-ON switch to select an operation mode of the load, switching a load current supplied from a power supply via a power supply line in a current direction according to the operation mode, and applying the current to the load. A load control method for executing control and performing load stop control by interrupting a load current based on position detection using a limit switch built into the load, wherein the stop of the value of the load current supplied to the load is performed. While monitoring at the time of control, when it is determined that the supply of the load current is not necessary when the load current at the time of the stop control becomes a specified value or less, the power supply line is disconnected from the power supply line to disconnect the power supply to the power supply line. A load control method, comprising: a stop control step of executing control for cutting off supply of a load current. 4. The stop control step includes: a load current detection step of detecting a current value of a load current supplied to a load during the stop control; and a current value of the load current detected in the load current detection step and the regulation. A current comparison determining step of comparing the load current with the value to determine whether or not the load current is equal to or less than the specified value. 4. The load control method according to claim 3, further comprising: a power cutoff step of disconnecting the power supply from the power supply line and interrupting supply of a load current to the power supply line when it is determined that the power supply line has been disconnected. . 5. An operation in which an operation mode of a load is selected by operating an ON-ON switch, and a load current supplied from a power supply via a power supply line is switched to a current direction corresponding to the operation mode and applied to the load for operation. A load control method that executes control and executes load stop control by interrupting a load current based on position detection using a limit switch built in the load, wherein the load current is interrupted during the load stop control. A load control method for performing a control for disconnecting the power supply from the power supply line and interrupting supply of a load current to the power supply line in response to the power supply line. 6. An operation control step of executing the operation control, comprising: a switch state detection step of detecting a switch state of the ON-ON switch; and an operation mode determination step of determining the operation mode according to the switch state. A current direction switching step of switching a load current supplied from a power supply via a power supply line to a current direction according to the operation mode in accordance with the operation mode obtained in the operation mode determination step; The load control method according to any one of claims 1 to 5, further comprising a load driving step of supplying a load current having a current direction obtained in the step to the load. 7. An operation is performed by operating an ON-ON switch to select an operation mode of a load, switching a load current supplied from a power supply via a power supply line in a current direction according to the operation mode, and applying the current to the load. A load control device that executes control and executes a stop control of the load by interrupting the load current based on position detection using a limit switch built in the load, wherein the value of the load current supplied to the load is stopped. Stop control that monitors at the time of control and executes control to cut off the supply of load current to the power supply line by disconnecting the power supply from the power supply line when the supply of load current during the stop control is stopped. A load control device comprising: 8. The stop control means includes: a load current detection unit that detects a current value of a load current supplied to a load during the stop control; and a current value of the load current detected by the load current detection unit being zero. And a current comparison determination unit that determines whether or not the current value of the load current has become zero and the supply of the load current has been stopped in the current comparison determination unit,
The load control device according to claim 7, further comprising a power cutoff unit configured to disconnect the power supply from the power supply line and cut off supply of a load current to the power supply line. 9. An operation in which a load operation mode is selected by operating an ON-ON switch, and a load current supplied from a power supply via a power supply line is switched to a current direction corresponding to the operation mode and applied to the load. A load control device that executes control and executes a stop control of the load by interrupting the load current based on position detection using a limit switch built in the load, wherein the value of the load current supplied to the load is stopped. While monitoring at the time of control, when it is determined that the supply of the load current is not necessary when the load current at the time of the stop control becomes a specified value or less, the power supply line is disconnected from the power supply line to disconnect the power supply to the power supply line. A load control device, comprising: stop control means for executing control to cut off supply of a load current. 10. The stop control unit includes: a load current detection unit that detects a current value of a load current supplied to a load during the stop control; and a load current detection unit that detects a current value of the load current detected by the load current detection unit. A current comparison and determination unit that determines whether or not the load current is equal to or less than the specified value by comparing the load current with the value. The load control according to claim 9, further comprising: a power cutoff unit that disconnects the power supply from the power supply line and cuts off supply of a load current to the power supply line when it is determined that the power supply line has stopped. apparatus. An operation is performed by operating an ON-ON switch to select an operation mode of a load, switching a load current supplied from a power supply via a power supply line in a current direction according to the operation mode, and applying the load current to the load. A load control device that executes control, and executes load stop control by interrupting a load current based on position detection using a limit switch built into the load, wherein the load current is interrupted during the load stop control. And a stop control unit configured to execute a control to cut off the supply of the load current to the power supply line by disconnecting the power supply from the power supply line in response to the control signal. 12. An operation control unit that executes the operation control, comprising: a switch state detection unit that detects a switch state of the ON-ON switch; and an operation mode determination unit that determines the operation mode according to the switch state. A current direction switching unit configured to switch a load current supplied from a power supply via a power supply line to a current direction corresponding to the operation mode in accordance with the operation mode determined by the operation mode determination unit; The load control device according to any one of claims 7 to 11, further comprising a load driving unit configured to supply a load current having a current direction obtained by the unit to the load.