JPH01275240A - Remote starting car system - Google Patents

Abstract

PURPOSE:To facilitate remote starting of an engine by furnishing a remote start signal transmitting means, a remote start signal receiving means, and a start grant signal generating means, and by providing an engine starting means which is actuated when an engine start signal and a start grant signal are give. CONSTITUTION:When fed into an input device 101, an engine remote start signal is modulated by a remote start signal transmitting means 102 to be transmitted in the form of radio signal 118. When received by a remote start signal receiving means 106, this signal 118 is demodulated to be emitted in the form of a remote start signal 119. When a start grant signal 120 emitted from a start grant signal generating means 111 actuates a switch 115, the remote start signal 119 passes this switch 115 and is fed into an engine start signal generating means 116. Now a start switch control signal 121 and an ignition switch control signal 122 are given to an engine starting means 117 by this means 116, and the engine is put in operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automobile system that allows an engine to be started outside the vehicle.

[Prior Art] Fig. 5 shows a conventional engine starting means, in which the vehicle body, the engine 216,
It shows how to take ND.

Automobiles have a rotary key switch as a control means, into which the key is inserted and rotated, and depending on the rotation position, the stop position,
Distinguish between starting position and ignition position. The opening/closing of the starting switch 207 and the ignition switch 208 in FIG. 5 is determined by the position of the key switch.
The ignition switch 208 is turned off, and when the starting position is reached, only the starting switch 207 is turned on. When turned to the ignition position, both switches are turned on and the engine is ignited by the spark plug 215. After that, the key switch is returned to the starting position and the ignition switch is turned off, but since the starting switch is on, the engine continues to rotate. When the engine is returned to the stop position, both switches are turned off and the engine stops.

[Problem to be solved by the invention]

However, in the conventional technology, when starting a car engine, a person must get into the car and use a control means such as a key switch. Problems include having to wait until the engine warms up before driving, and in warm regions having to get into a hot car and turn on the air conditioner. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide an automobile in which the engine can be started from outside the vehicle without the need for a person to get into the vehicle.

[Means for Solving the Problems] A remote starting vehicle system of the present invention includes a human power device, a remote starting transmitting means for modulating and wirelessly transmitting a signal from an input device, and receiving a wireless signal from the remote starting transmitting means. A remote starting signal receiving means for demodulating, a starting permission signal generating means for generating a starting permission signal, a gate means for sending a signal from the remote starting receiving means to the engine starting signal generating means in response to the starting permission signal, and a control means. It is characterized by comprising an engine starting means for starting the engine in response to a signal from an engine starting signal generating means and a signal from a control means.

[Embodiment] FIG. 1 is a block diagram in an embodiment of the present invention, in which a signal for remote starting of an automobile engine is manually inputted from an input device] 01, modulated by a remote starting signal transmitting means 102, and then transmitted as a wireless signal. 118. wireless signal 108
is received by the remote activation signal receiving means 106, demodulated, and output as a remote activation signal 119. on the other hand,
When the start permission signal 120 is output from the start permission signal generation means 111 and the switch 115 is turned on, the remote start signal 119 passes through the switch 115 and is manually inputted to the engine start signal generation means 116, which generates the start switch control signal 121.
and the ignition switch control signal is manually input to the engine starting means 117, or the key starting control signal 201 and the key ignition control signal 204 from the key switch 123, which is one method of controlling means, are input to the engine starting means 117. The engine is started.

Each part will be explained in detail below.

The input device 101 can be a simple 0N-OFF switch, a combination of numbers using a numeric keypad, a switch that is turned by inserting a car key, etc., but a simple 0N-OFF switch is possible.
Since the F switch can be activated by someone else without permission, using a switch that uses a combination of numbers or a key has the effect of preventing mischief by others and ensuring safety. Let us consider below the case of inputting a combination of numbers using a numeric keypad. ID assigned to this device
When the number (four digits) is manually entered into the human-powered device 101, the human-powered device 101 converts it into a binary food and sends a signal to the remote activation signal transmitting means 102. Human power device 10
If the value manually entered in 1 is other than the ID number, the input device 101 does not output. Remote activation signal transmitting means 10
2 is a modulation circuit 103, a transmitting circuit 104, and a transmitting antenna 1
Consists of 05. The modulation circuit 103 has an oscillation circuit and a frequency division circuit that divides the clock from the oscillation circuit, and the modulation circuit 103 has a carrier frequency determined by the frequency division circuit.
The input signal is FM modulated. The FM modulated signal is amplified by the transmitting circuit 104 and sent to the transmitting antenna 105.
more radiated into the air. Since the device of the present invention is new and is not protected by the Radio Law, in this example it is necessary to transmit within the standards for "weak radio stations", with a transmission frequency of 100 MHz and an electric field strength of 3 m from the transmitting antenna. The amplification factor of the transmitting circuit 104 and the transmitting antenna 105 was determined to be 400 μV/m at a distance of . In the case of the above electric field strength, sufficient communication is possible even if the distance between the transmitting antenna 105 and the receiving antenna 107 is several tens of meters apart, and communication is possible even if the transmitting antenna 105 and the receiving antenna 107 are separated from each other by several tens of meters, and communication is possible even if the transmitting antenna 105 and the receiving antenna 107 are separated from each other by a car in a garage.

A radio signal 118 radiated from the transmitting antenna 105 enters the receiving antenna 108.

In the activation signal receiving means 106, the signal from the receiving antenna 108 passes through the receiving circuit 108, and the demodulating circuit 10 receives the signal from the FM
The signal is demodulated and input to the remote activation signal generation circuit 110 in the form of a binary code indicating the ID number. The remote activation signal generation circuit 110 determines whether the manually inputted signal matches the ID number determined for the device, and outputs the remote activation signal 119 only when the ID number matches.

In the above explanation, the carrier frequency of the wireless signal 118 is
Although the frequency is fixed at MHz, it is also possible to provide a plurality of carrier frequencies using a frequency synthesizer method, as in the data transmission method used in car telephones and low-power wireless equipment. Furthermore, if the modulation circuit 103 has a configuration in which the frequency division number of the frequency division circuit that generates the carrier frequency can be changed with a switch, and the demodulation circuit 109 has a configuration in which the frequency division number can also be changed with a switch, then the noise radio waves can be reduced by manual operation. This is effective because a small number of carrier frequencies can be selected and it can be realized at low cost from a practical standpoint.

Next, the activation permission signal generating means 111 will be explained. This is a device that allows the engine to be started remotely only when the car is completely parked.
Handbrake confirmation circuit 113, gear position confirmation circuit 11
4. It is composed of an AND circuit 112. As shown in Fig. 3, the handbrake confirmation circuit has a switch terminal 302 fixed to the handbrake 301, and when the handbrake 301 is ON, it is in the position shown by the solid line in Fig. 3, and the switch terminal 302 and the switch terminal are connected to each other. 303 is connected and conductive. When the handbrake 301 rotates around the shaft 306 and comes to the position indicated by the dotted line in Figure 3, the brake is turned off.
F, and the switch terminal 302 is separated from the switch terminal 303. The transistor 304 is turned on or off by connecting or disconnecting the switch terminal 302 and the switch terminal 303, and a high level signal and a low level signal are output from the output terminal 305 in accordance with whether the brake is turned on or off.

The gear position confirmation circuit 114 can also be constructed in the same manner as shown in FIG. 3, and only when the gear is in the parking position, the switch is turned on and a high level signal is output.

The output of the handbrake confirmation circuit 113 and the output of the gear position confirmation circuit 114 are input to an AND circuit 112, and when both are at High level, the activation permission signal 120 is set to High.
The switch 115 is turned on to set the gh level.

Further, as a configuration of the activation permission signal generation means 111, AN
It is also possible to add an additional circuit to the parallel input terminal of the D circuit 112. For example, when the steering wheel is locked by key operation of a car, the locked state of the steering wheel is confirmed and the high
A circuit that outputs a level can also be considered.

The circuit on the parallel input side of the AND circuit 112 is for confirming that the car is parked normally and that the engine can be started unattended. Having multiple parallel circuits is for safety purposes. It is effective in ensuring that

When the activation permission signal 120 is at a high level, the switch 115 is activated.
When the remote start signal 119 is turned ON, the remote start signal 119 is manually input to the engine start signal generating means 116.

The engine start signal generating means has a timer, and when the remote start signal 119 is input, the timer is reset, and the start switch control signal 121 is set to High level and then set to Low level after the elapse of time t3. Further, the ignition switch control signal 122 is set to High level after time t2 from the reset, and set to Low level after time t3. The above timing is shown in FIG.

In this example, t + = 30 minutes, t2 = 1 second, t3 = 2
Seconds.

The starting switch control signal 121 and the ignition switch control signal ]22 shown in FIG. 4 are input to the engine starting means 1]7.

FIG. 2 shows the engine starting means 117, and when the automobile is unmanned, that is, when no operation is performed using ghee, the key starting control signal 201 and the key ignition control signal 20
4 is at Low level, and the switch control terminals of switch 203 and switch 206 are at High level, and the switches are turned on. That is, the activation switch signal 121
The activation switch 207 is controlled through the switch 203 and the OR circuit 202, and the ignition switch control signal 122 controls the ignition switch 208 through the switch 206 and the OR circuit 205.

Here, to explain in order from the time of reset in Fig. 4, the starting switch control signal 121 goes to H4gh level at the time of reset, so the switch 207 becomes ON state, and after time t2 (1 second), the ignition switch control signal goes to H4gh level. Therefore, the switch 208 is turned on. At this point, the spark plug operates and the engine turns on. When the − stage engine is turned on, the switch 208 is turned off after a time t3 (2 seconds), but since the switch 207 is turned on, the engine continues to be turned on. and 1. time (30
minutes), the engine will stop when switch 2o7 is turned OFF.

However, when a person gets into the car and turns the key switch 123 to the activation position during time t1, the key activation control signal 201 becomes High level, so the switch 203 and the switch 206 are turned OFF, and the signal passes through the OR circuit 202. , the start switch 207 is kept ON to enable the vehicle to run.

The key switch 123 can be set to ■stop position, ■start position, and ■ignition position by inserting and rotating the key.The relationship between each setting position, key activation control signal 201, and key ignition control signal 204 is shown in the table Shown in 1.

Table 1 Here, when the key switch 123 is turned to the starting position,
The switch 203 and the switch 204 control the part of the remote starting system (the starting switch control signal 12 from the input device 101).
1 and ignition switch control signal 122) is the second
Since it is completely separated from the engine starting means 117 shown in the figure, there is no need to worry about problems such as radio interference while driving. Further, when the key switch 123 is turned to the starting position, the remote starting system is disconnected by the switch 203 and the switch 204, but the remote starting signal generation circuit 1
It can be seen that it is also possible to simply turn off the power to the section from 10 to the engine start signal generating means 116 using a relay switch or the like.

On the other hand, when starting the engine with only the key switch 123, when the key switch 123 is turned to the starting position as in the prior art, the key starting control signal 201 becomes High level, and the key switch 123 is turned to the ignition position and then started. When the key is returned to the ignition position, the key ignition control signal 204 goes high only while the key is in the ignition position, turning the ignition switch 208 ON. While the key switch 123 is in the starting position and the ignition position, the key starting control signal 201 is at the H]gh level and the starting switch 207 is in the ON state, so after the ignition switch 208 is turned ON, the engine is in the ON state. and allow the vehicle to run. Also,
When the key switch 123 is returned to the stop position, the key activation control signal 201 becomes Low level, the activation switch 207 is turned OFF, and the engine is stopped.

[Effects of the Invention] As described above, according to the present invention, by starting the engine of a car wirelessly from a remote location, the engine can be started remotely to warm up the engine before driving in cold regions. In addition, if you turn on the heater, heating will start at the same time as the engine starts, so by the time people actually get into the car, both the engine and the inside of the car will be warm and they can start driving comfortably. has
Additionally, in warm regions, if you turn on the air conditioner, it will start cooling at the same time as the engine starts, so the inside of the car will be at a comfortable temperature when people get into the car. Furthermore, safety checks are being carried out to enable remote operation by means of generating a start permission signal, which allows the engine to start by checking the handbrake, gear position, etc. ,
It has the effect of being able to be put into practical use safely, and since the engine starting means is completely disconnected from the remote control system during driving by operating a key switch, it has the effect of not being affected by radio interference, etc.

[Brief explanation of the drawing]

FIG. 1 is a main block diagram showing an embodiment of a remotely activated vehicle according to the present invention. FIG. 2 is a diagram showing the engine starting means of the present invention. FIG. 3 is a diagram showing a handbrake confirmation circuit of the present invention. FIG. 4(a) is a diagram showing the timing of the starting switch control signal of the present invention, and FIG. 4(b) is a diagram showing the timing of the ignition switch control signal. FIG. 5 is a diagram showing a conventional automobile engine starting means. 101... Input device 102... Remote start signal transmitting means 103... Modulation circuit 104... Transmitting circuit 105... Transmitting antenna 106... Remote start signal receiving means 107... Receiving antenna 108. ...Reception circuit 109...Demodulation circuit 110...Remote start signal generation circuit 111...Start permission signal generation means 112...AND circuit 113...Handbrake confirmation circuit 114...Gear position confirmation circuit 115...Switch 116...Engine start signal generation means 117...Engine start means 118...Remote start radio signal 119...Remote start signal 120...Start permission signal 121...Start switch control Signal 122...Ignition switch control signal 123...Key switch 201...Key activation control signal 202...OR circuit 203...Switch 204...Key ignition control signal 205...OR circuit 206... Switch 207... Starting switch 208... Ignition switch 209... Storage battery 210... Starting electric rock 211... Generator 212... Automatic charging switch 213... Ignition coil 214... Power distribution device 215...Spark plug 216...Car body, body, engine 301...Handbrake 302...Switch terminal 303...Switch terminal 304...Transistor 305...Output 306...Application for shaft or above Person Seiko Epson Co., Ltd. Representative Patent Attorney Masaharu Kamiyanagi (1 other person) ~
- To 1＼ Written amendment of taste procedure (method) August 1988 1211 1988 Patent Application No. 106090 2 Name of the invention Remote start automobile system 3 Relationship with the amended person case Applicant Nishi, Shinjuku-ku, Tokyo Shinjuku 2-4-1 (236) Seiko Epson Corporation Representative Director Tsuneya Nakamura 4, Agent Address: 2-4-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 163 Address: 348-8531 Ext. 300-302 To the application form: Added first?
-T engraving of the drawings, as shown in the attached sheet (no changes in content)

Claims (1)

[Claims] (1) An automobile including an engine starting means and a control means for controlling the engine starting means, an input device, a remote starting signal transmitting means for modulating and wirelessly transmitting a signal from the input device, and the remote starting signal transmitting means. remote starting signal receiving means for receiving and demodulating a wireless signal from the remote starting signal receiving means; starting permission signal generating means for generating a starting permission signal; and generating an engine starting signal by converting the signal from the remote starting signal receiving means in response to the starting permission signal. 1. A remote starting automobile system comprising: gate means for sending a signal to the engine starting signal generating means; and said engine starting means for starting the engine in response to a signal from said engine starting signal generating means and a signal from said control means.