JPH07139454A - Engine remote control system - Google Patents

Abstract

PURPOSE:To provide an engine remote control system which is free from shortage of a battery even when it is installed in an automobile assembling an automatic light control device being automatically lit in the case that an ignition switch is at an IG position and dark environment presents. CONSTITUTION:Starting of warming-up is commanded through a starting switch 11. When a specified time has passed or a stopping switch 12 is operated, a fourth relay of a relay circuit 23, which is parallelly connected to a door switch 5 is operated for one second for closing a contact. The relay bypasses a portion between terminals of the door switch 5 for generating a door opening signal 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine remote control system for remotely controlling an engine of an automobile parked at a remote place with a portable device.

[0002]

2. Description of the Related Art Conventionally, a start switch and a stop switch are provided, and a control signal for instructing a warm-up operation for keeping an engine in an operating state for a predetermined time or a stop of the warm-up operation is superimposed and emitted on a carrier wave. Engine remote control including a portable device, a receiving circuit that captures radio waves and demodulates a control signal, a relay circuit that conducts between specific contacts of an ignition switch, and a vehicle-mounted device that has a control circuit that controls the relay circuit based on the control signal The system is known.

In this engine remote control system, when the start switch of the portable device is operated to instruct the start of the warm-up operation, the receiving circuit demodulates the control signal and the control circuit causes the relay circuit to act as a common contact of the ignition switch. A relay activation signal is output so that the ST contact is electrically connected for a set short time and then the common contact and the ON contact are electrically connected for a predetermined time.

For this reason, the starter is started, the engine is started, and the warm-up operation is started. Then, when a predetermined time elapses or when the portable device is instructed to stop the warm-up operation, the common contact and the ON contact are brought into a non-conductive state, and the engine is stopped.

By the way, in recent years, when the light switch is switched to the "automatic" position and the ignition switch is operated to the IG position, an automatic light control device for automatically lighting the lights when the surroundings are dark and extinguishing the lights when the surroundings are bright is incorporated. Cars have appeared.

[0006]

When the above engine remote control system is installed in this automobile, it has been found that the following problems occur.

When the light switch is set to the "automatic" position and the engine is remotely started by a portable device at night or the like, lights such as headlights are turned on. However, if the engine stops after a certain period of time (warm-up operation ends) or the engine stops by operating the stop switch on the portable device (warm-up operation stops), the door on the driver's side Is not operated (closed → open), the lights remain lit,
If left unattended, the battery will run out.

Therefore, when the engine remote start is used at night when the lights such as headlights may be turned on, the light switch must be switched to the "manual" position. It had the drawback of being inconvenient to use.

An object of the present invention is to eliminate the possibility of battery exhaustion even when mounted on a vehicle incorporating an automatic light control device in which lights are automatically turned on when the ignition switch is in the IG position when the surroundings are dark. To provide an engine remote control system.

[0010]

In order to solve the above problems, the present invention provides a contact signal from an ignition switch and a door open / close signal from a door switch whose contact state is switched by opening / closing a door on the driver's side. And a sensor signal of an optical sensor that senses ambient brightness, and once the ignition switch is operated to the IG position,
The light control function that automatically turns on the lights when the surroundings are dark and turns off the lights when it is bright starts, returns the ignition switch to the OFF position, and opens the door on the driver's side. A remote engine control system for use in a vehicle incorporating a control device, in which a control signal for instructing start or stop of warm-up operation that keeps the engine in operation for a predetermined time is superimposed on a carrier wave The same as when the ignition switch is set to the IG position and the ST position by electrically connecting the portable device for sending in the air, the detection means for capturing the radio wave and demodulating the control signal, and the specific contact. And a vehicle-mounted device having a control unit that controls the bypass unit based on a demodulated control signal. Machine operation starts, at the time of the time or stop ends, the vehicle-mounted device transmits a door opening signal to the automatic light control device.

[0011]

When the start of the warm-up operation is instructed by the portable device, the radio wave on which the control signal is superimposed is transmitted to the air.

The detection means of the vehicle-mounted device captures the radio wave and demodulates the control signal.

The control means controls the bypass means based on the control signal indicating that the warm-up operation is started.

The bypass means is initially between the specific contacts of the ignition switch (common contact-ST contact) so that it is in the same state as when the ignition switch is set to the ST position.
To a conductive state (starter operates), and then place the ignition switch between the specific contacts (common contact-O
Make the N contact) conductive. As a result, the engine is put into operation and the warm-up operation starts.

The automatic light controller has a contact signal from the ignition switch and a door open / close signal from the door switch.
When the closing signal and the sensor signal of the optical sensor are input and the engine is in the operating state (the common contact of the ignition switch-the ON contact is in the conducting state), the automatic light control device will be Turn on the lights.

When a predetermined time elapses or when the portable device is instructed to stop the warm-up operation, the bypass means brings the common contact and the specific fixed contact (IG contact) into the same state as when the ignition switch is turned to the OFF position. ) The engine is stopped because it becomes a non-conduction state.

At the time when the engine stops (the same state as when the ignition switch is turned to the OFF position) after a predetermined time has elapsed or when the portable device instructs the stop of the warm-up operation, the vehicle-mounted device is operated by the automatic light control device. Sends a door open signal to.

Since the automatic light control device considers that the door on the driver's side has been opened and cancels the light control function, the lights are turned off.

[0019]

[Effects of the Invention] A predetermined time elapses after an on-vehicle device is mounted on an automobile incorporating an automatic light control device in which lights are automatically turned on when the surroundings are dark and a warm-up operation is instructed by a portable device. When the engine is stopped by instructing to stop the warm-up operation with the portable device, the lights are turned off even if the lights are turned on while the engine is operating, so there is no possibility that the battery will run out.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. As shown in the figure, the engine remote control system A is composed of a portable device 1 and a vehicle-mounted device 2, and is mounted on an automobile (not shown) incorporating an automatic light control device B.

The portable device 1 includes a start switch 1 for instructing the start of a warm-up operation in which the engine is operated for a predetermined time.
1 or a stop switch 12 for instructing interruption of the warm-up operation, and when the start switch 11 or the stop switch 12 is operated, control signals 221 and 222 (portable device) for instructing start or interruption of the warm-up operation of the carrier wave. (Not shown in the figure on the 1st side)
And is transmitted as a radio wave 13 (400 MHz band, output 1 mW in this embodiment) from the antenna 14.

The vehicle-mounted device 2 has an antenna 2 for capturing the radio waves 13.
1. Control signals 221 and 222 by detecting the captured radio wave 13
A receiving circuit 22 (21 and 22 correspond to detecting means) for demodulating the signal, a relay circuit 23 that is a bypass means, and a control circuit 24 that controls the relay circuit 23.

The antenna 21 captures the radio wave 13 and sends it to the receiving circuit 22. The receiving circuit 22 detects the radio wave 13 and sends the demodulated control signals 221 and 222 to the control circuit 24.

The relay circuit 23 is a first relay that bypasses between the COM contact 30 and the ACC contact 32 of the ignition switch 3 outside the ignition switch 3 during operation, and between the COM contact 30 and the IG contact 33 during operation. A second relay that bypasses outside the ignition switch 3, a third relay that bypasses between the COM contact 30 and the ST contact 34 during operation outside the ignition switch 3, and a door switch 5 connected in parallel and connected to the door switch 5 during operation. It is constituted by a fourth relay that bypasses both terminals of 5 outside the door switch 5.

The control circuit 24 controls the control signals 221 and 222.
Is input, relay activation signals 241-244 for activating the first to fourth relays are sent to the relay circuit 23.

The automatic light control device B is connected to a light switch 41, an optical sensor 42, and a light 43, and has an input terminal 44 for a door signal and an input terminal 45 for inputting contact signals 331, 341 from the ignition switch 3, Four
6 is provided.

The light switch 41 has an "automatic" position in which the dimming function that automatically turns on the light 43 when the surroundings are dark and turns off when the surroundings are bright, and a "manual" position in which the dimming function is not activated.

The optical sensor 42 is a sensor such as a cds or a photodiode, detects the ambient brightness, and inputs a sensor signal to the automatic light controller B.

The lights 43 are lights such as headlights and small lights.

A door signal from the door switch 5 arranged on the vehicle body side is input to the input terminal 44. The door switch 5 is a normally-open type switch whose contacts are opened when the door on the driver's seat side is closed and closed when opened.

The input terminals 45 and 46 are respectively connected to the IG contact 33 and the ST contact 34 of the ignition switch 3, and the contact signal 331 from the ignition switch 3 and
341 is input.

In the automatic light control device B itself, the light switch 41 is in the "automatic" position, the door closing signal 51 is input to the input terminal 44 (the door on the driver side is closed), and the contacts When the signal 331 is once input to the input terminal 45 (the ignition switch 3 is once operated to the IG position), the light 4 is automatically output when the surroundings are dark.
The dimming function that 3 turns on and turns off when it is bright starts to operate. Then, the contact signal 331 or the contact signal 341 is not input to the input terminal 45 or the input terminal 46 (the ignition switch 3 is set to the ACC position or the OFF position), the driver side door is opened, and the door open signal 52 is input terminal. When input to 44, this light control function is canceled and the light 43 is turned off.

Next, the operation of the engine remote control system A will be described. The automobile is parked away from the portable device 1, and the surroundings are dark. Further, the ignition switch 3 is in the OFF position, the light switch 41 is in the "automatic" position, the door is closed, and the passenger compartment is unattended. (1) When the start switch 11 of the portable device 1 is operated to instruct the start of the warm-up operation, the radio wave 13 on which the control signal 221 is superimposed is transmitted.
Is transmitted from the antenna 14 (state 61 in FIG. 2).

(2) The radio wave 13 is captured by the antenna 21 of the vehicle-mounted device 2, and the receiving circuit 22 detects and demodulates the radio wave 13,
The demodulated control signal 221 is sent to the control circuit 24.

(3) When the control signal 221 is input, the control circuit 24 controls whether a predetermined time (for example, 15 minutes after the input of the control signal 221) has elapsed, as shown in the time chart of FIG. The relay operating signals 241 and 242 are sent to the relay circuit 23 until the signal 222 is input, and the relay operating signal 243 is transmitted for the set time (several seconds).
Send to 3.

(4) The first and second relays of the relay circuit 23 are in an operating state until a predetermined time elapses or the control signal 222 is input, during which the contacts of the first and second relays are closed. It becomes a state. Further, the third relay is in an operating state for a set time (several seconds), and during that time, the contact of the third relay is in a closed state.

Therefore, COM contact 30-ACC contact 32
And between the COM contact 30 and the IG contact 33 are bypassed, and an accessory circuit (not shown) such as a car radio and an ignition circuit (not shown) for applying a high voltage to the spark plug are connected to the battery 7. Power is supplied. Also, CO
Bypassing between the M contact 30 and the ST contact 34, the power of the battery 7 is supplied to the starter for a set time (several seconds).

The contact of the fourth relay is off, the surroundings are dark, and the contact signal 33 to the input terminal 45 at the time of the state 61.
Since 1 is input, the dimming function of the automatic light control device B starts to operate and the light 43 is turned on.

(5) The user turns off the stop switch 12 of the portable device 1.
The receiver circuit 22 controls the control signal 222 by operating
4 or a predetermined time (15 minutes) has passed (Fig. 2
State 62), and the control circuit 24 stops sending the relay actuation signals 241, 242 as shown in the time chart of FIG. 2 for Ts seconds (for example, 1 second) and the relay actuation signal 2
44 is sent to the relay circuit 23.

(6) The first and second relays of the relay circuit 23 are deactivated, and the contacts of the first and second relays are open (the third relay is already open and the relay contacts Is open). The fourth relay is Ts
It is activated for one second (1 second), during which the contacts of the fourth relay are closed.

Therefore, COM contact 30-ACC contact 32
Between the COM contact 30 and the IG contact 33 is released, power to an accessory circuit (not shown) such as a car radio and an ignition circuit for applying a high voltage to the spark plug is cut off, and the engine is disconnected. As it stops
The power supply to the accessory circuit is cut off.

When the contact signals 331 and 341 are not input to the input terminals 45 and 46 (the ignition switch is in the OFF position or the ACC position), the door open signal 52 is input to the input terminal 44 for Ts seconds (1 second). Since the same state as described above is reached, the dimming function of the automatic light control device B stops operating and the light 43 is turned off.

The effects of the engine remote control system A will be described below. [A] The engine remote control system A is installed in a vehicle incorporating the automatic light control device B, and the start switch 11 of the portable device 1 is operated to instruct the start of the warm-up operation.
When a predetermined time (15 minutes) elapses or when the stop switch 12 is operated to instruct to stop the warm-up operation, the surroundings are dark and the light control function of the automatic light control device B is activated to turn on the light 43. Even if it is, the light 43 is turned off when the engine is stopped, so there is no possibility that the battery will rise even if it is left as it is.

Therefore, it is not necessary to switch the light switch 41 to the "manual" position at night when the light 43 may be turned on, which is convenient.

[A] At night, if the light switch 41 is set to the "auto" position and the warm-up operation is instructed by the portable device 1, the light 43 is turned on while the engine is operating. The parking position can be easily confirmed by the light of the light 43.

[C] When the stop switch 12 is operated during the warm-up operation of the portable device 1 or a predetermined time (15 minutes) has elapsed after the start of the warm-up operation, the control circuit 24 causes the relay operation signal 241, The transmission of 242 is stopped, the relay operation signal 244 is transmitted to the fourth relay for 1 second, and the same state as when the door is opened is created for 1 second. For this reason, the time is sufficient to stop the operation of the light control function of the automatic light control device B, and the consumption of the battery 7 due to the door lighting connected to the battery 7 without the ignition switch 3 is prevented. I can do things.

The present invention includes the following embodiments in addition to the above embodiments. a. According to claim 1, "OFF of ignition switch"
"Position" includes the ACC position in the case of an ignition switch having the ACC position as in the above embodiment.

B. A normally-closed switch whose contacts open when the door is opened may be used as the door switch.

C. As the bypass means, a semiconductor switch may be used instead of the relay.

[Brief description of drawings]

FIG. 1 is a block diagram of an engine remote control system showing an embodiment of the present invention.

FIG. 2 is a time chart showing states of relays and the like in the system.

[Explanation of symbols]

 A engine remote control system B automatic light control device 1 portable device 3 ignition switch 5 door switch 13 electric wave 22 receiving circuit (detection means) 23 relay circuit (bypass means) 42 optical sensor 51 door closing signal 52 door closing signal 221 control signal 222 Control signal 331 Contact signal 341 Contact signal

Claims (1)

[Claims] 1. A contact signal from an ignition switch, a door open / close signal from a door switch whose contact state is switched by opening / closing a door on the driver's side, and a sensor signal of an optical sensor for sensing ambient brightness. , And once the ignition switch is moved to the IG position, the dimming function that automatically lights the lights when the surroundings are dark and turns them off when the lights are bright starts to operate, and returns the ignition switch to the OFF position. This is a remote engine control system used in automobiles that incorporates an automatic light control device that releases the dimming function when the side door is opened. A portable device that superimposes a control signal for instructing to stop the machine operation on a carrier wave and sends it into the air as a radio wave, and controls by capturing the radio wave Detecting means for demodulating the signal, bypass means for bringing the ignition switch into the same state as when the ignition switch is in the IG position and the ST position by electrically connecting the specific contacts, and the bypass means based on the demodulated control signal And a vehicle-mounted device having a control means for controlling, the vehicle-mounted device sends a door open signal to the automatic light control device at the time when the warm-up operation is started and ended by the portable device or when it is stopped. An engine remote control system featuring things.