JPH01280676A - Engine starting reserving device for automobile - Google Patents

Abstract

PURPOSE:To ensure safety, by a method wherein, when it comes to a starting time, an engine is started automatically, during turning ON of a key switch, a reserved mode is released, and when turning ON of the key switch is not made even after lapse of a given time, an engine is brought into a stop to release a reserved mode. CONSTITUTION:With a reserving switch 23 turned ON, an engine is brought into a reserved mode, and further progression is effected when a shift lever detected by a shift switch 31 is in a position P or a position N and an ignition switch 32 is turned OFF and a door switch 33 detects closing of a door. When it comes to a reserving time, a signal is outputted to an engine starting circuit 41, and an engine is cranked. When, after the starting of the engine, an ignition switch 32 is turned ON for a reserved mode continuing time (approximate 20 minutes), a reserved mode is released. When a reserved mode continuing time elapses in a state that the ignition switch 32 is not turned ON, the engine is brought into a stop, and the reserved mode is released in a similar manner described above.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a start reservation device that automatically starts an automobile engine at a desired time.

<Prior Art> An automobile engine is generally started by a driver operating a key to turn on a starter switch and drive the starter. Therefore, it is inconvenient to idle-link the engine in advance, especially when the distance to the parking lot is long. For this reason, there are devices that allow you to automatically start the engine from home via wireless communication.

<Problem to be solved by the invention> However, in the above-mentioned devices, if you forget to start the engine early, the engine may not warm up or the heating or cooling may not be sufficient. This was an inconvenience, as there was a possibility that the driver would have to start running even though the vehicle was already running.

In addition, there were cases where wireless communication was difficult in some areas, and even if the device was intended to be id-linked, it was not id-linked.

The present invention has been made in view of these problems, and aims to provide an engine start reservation device for a motor vehicle that automatically starts the engine and ensures reliable idling.

<Means for Solving the Problems> In order to achieve the above object, the engine start reservation device of the present invention includes a time setting means for setting a reservation time for starting the engine, and a time setting means for setting a reservation time for starting the engine at the set time. a reservation means for selecting a mode; a position detection means for detecting the position of the shift lever; When the engine arrives, an engine starting means drives the starter for a predetermined time to start the engine, and when the key switch is turned on within a predetermined time after the engine starts, the reservation mode i- is canceled and the engine continues to operate for a predetermined time. The engine is equipped with a reservation canceling means for canceling the reservation mode and stopping the engine if the key switch is not turned on even after a period of time has elapsed.

<Function> When the reservation time is set and the reservation mode is selected, the shift lever is placed in a position where there is no danger even if the engine is started.
In other words, it detects that the vehicle is in park or neutral position, and the engine starts at the scheduled time. This allows the engine to warm up sufficiently, and by turning on the air conditioner, it becomes possible to ride in a comfortable air-conditioned state. When the driver gets in the car and turns on the key switch within a predetermined time, the reserved mode is canceled and normal driving is possible, and if the key switch is not turned on within a predetermined time, the engine automatically turns off. Stopping prevents unnecessary eye 1 ring operation, and the reservation mode 1 is canceled to return to the normal standby state.

<Example> Next, an example shown in the drawings will be described. FIG. 1 is a block diagram showing the configuration of the device.

In the figure, reference numeral 1 denotes a microcomputer for the control unit, which includes a CPU 1 that performs various calculations, a ROM 12 that stores control programs and data, a RAM 13 that temporarily stores necessary data, a clock generator 14, etc. We are prepared. Reference numeral 2 denotes an operation section, which includes an information setting switch 21, a condition setting switch 22, and a reservation switch 23 that are manually operated, and a display section 24 that displays the settings made by these switches.

31 to 35 are switches and sensors that input various signals to the microcomputer 1, 31 is a shift switch that detects the position of the shift lever, 32 is an ignition switch, 33 is a door switch, and 34 is a temperature sensor in the vehicle interior. A room temperature sensor 35 detects the engine cooling water temperature. Sensors 34 and 3
The detection signal No. 5 is processed by a signal processing circuit 36 containing an A/D converter and input to the microcomputer 1.

41 is an engine starting circuit, 42 is an air conditioner drive circuit, 4
3 is a shift lever lock circuit, and these circuits operate according to instructions from the microcomputer 1-.

Next, the functions and control procedures of each part will be explained with reference to flowchart 1 shown in FIGS. 2(a) and 2(b).

The flow on the left side of FIG. 2(a) is a procedure for setting the time and temperature using the information setting switch 21 and the condition setting switch 22 of the operation section 2. The information setting switch 21 alternately switches between a time setting mode and a temperature setting mode each time it is turned on.In step S], it is determined whether the information setting switch 21 is on or off, and in step S2, the display is switched and the display section 24 is displayed. Is displayed. The condition setting switch 22 is used to input set values for time and temperature, and the information setting switch 2
1 is on, data is input in accordance with each mote in step S3, and when the information setting switch 21 is turned off, the contents are stored and displayed on the display section 24 at the same time. In addition to directly inputting the reservation time, the time can also be set by inputting the elapsed time until the reservation time.

When the reservation switch 23 is turned on in this state, the reservation mode 1
Then, the flow moves to the right side (step S4).

In the reservation mode, when it is detected that the shift 1-lever is in the park or neutral position and the ignition switch 32 is off, the shift lever is turned off.
If it is detected that the door is locked and the door is closed, the process proceeds. When it is confirmed in step S5 that the ignition switch 32 has been turned on by the reserved time, the process proceeds to step 2 in FIG. 2(b), where the shift 1 to lock and the reserved mode are released. Also, ignition switch 3
If it is confirmed in step S6 that the reserved time has arrived without turning on the switch 2, a signal is sent to the engine starting circuit 41, the starter is driven and the engine is started, and at the same time a timer is activated to continue the reserved mode. starts, and the temperature inside the vehicle is read (step S7). Note that the reservation mode continuation time is set to, for example, about 20 minutes.

In this embodiment, a procedure (step S] 0) for operating the air conditioner after starting the engine is incorporated. That is, if it is confirmed in step S8 that the ignition switch 32 remains off, and that the duration of the reservation mode 1 has not ended in step S9, the room temperature is checked, and if the temperature is 25° C. or higher, the air conditioner drive circuit 42 is activated. is activated, the air conditioner is turned on, and cooling is performed to reach the temperature set in step S3. If the room temperature is below 15°C, the cooling water temperature is checked, and if it exceeds the set value, the air conditioner is turned on, and in this case heating is performed to reach the set temperature. In this way, the room temperature is 15-2
When the temperature reaches 5°C or is within this temperature range from the beginning, the air conditioner is turned off regardless of the set value. Note that after the air conditioner is turned on, the cooling water temperature is checked in Step S] and 1, and if the air conditioner becomes overheated, Step S is executed.
], proceed to step 2 to stop the engine, then proceed to step 8
The process advances to step 13 and the reservation mode is canceled.

Next, when it is confirmed in step S9 that the reservation mode duration time has ended without the ignition switch 32 being turned on, the process proceeds to step S12 to stop the engine, and in step S8 the ignition switch 32 is turned on.
If it is confirmed that the mode is turned on, the process advances to step S14 where the timer for continuing the reservation mode is cleared and the shift lock is released, and the process advances to step S13 where the reservation mode is canceled and the normal mode is activated. It returns to the standby state.

As described above, in this embodiment, when the reservation time is set and the reservation mode is selected, the engine is automatically started at the reservation time to warm up the engine, and the air conditioner is activated to provide comfortable cooling and heating. You can ride the train with this in place. When the driver gets in the car and turns on the key switch within a predetermined reservation mode duration time, the reservation mode is canceled and the vehicle is immediately ready for normal driving.

Furthermore, if the driver does not get into the vehicle within the reservation mode continuation time and the key switch is not turned on, the engine is automatically stopped to prevent unnecessary idling operation and the reservation mode is canceled.

Also, if the shift lever is not in Park or New 1 ~ Ral position, you will not be able to proceed with the reservation mode procedure, and if it is in Barkink or New 1 ~ Ral position, it will lock in that position and move to another position. This prevents the car from accidentally starting even if the engine starts at the scheduled time.

<Effects of the Invention> As is clear from the above-described embodiments, the engine start reservation device of the present invention automatically starts the engine at that time without any danger when the engine start time is reserved. When the engine is started and the key switch is turned on, the reservation mode I- is canceled, and if the key switch is not turned on for a long time, the engine is automatically stopped and the reservation mode is canceled.

Therefore, there is no need to start the engine early, making it easier to handle, avoiding unnecessary eye-rings, and making driving more comfortable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIGS. 2(a) and 2(b) are flowcharts of the control procedure. 1...Microcomputer, 11.CPU, 21
...Information setting switch, 22...Condition setting switch,
23... Reservation switch, 31... Shift 1 to switch, 32 Ignition switch, 41... Engine starting circuit.

Claims (1)

[Claims] (1) A time setting means for setting a reserved time for starting the engine, a reservation means for selecting a reservation mode for starting the engine at the set time, a position detection means for detecting the position of a shift lever, and a reservation mode is selected. and an engine starting means that starts the engine by driving a starter for a predetermined period of time when the scheduled start time arrives when the shift lever is in a predetermined position; Canceling the mode and allowing the engine to continue operating,
An engine start reservation device for an automobile, comprising: reservation canceling means for canceling a reservation mode and stopping the engine if a key switch is not turned on after a predetermined period of time.