JP5609589B2 - Engine start control system - Google Patents

Description

  The present invention relates to an engine start control system.

  A smart key system is known in which collation is performed using a portable device such as a cellular phone equipped with an electronic key, and the engine is started without inserting an ignition key. In the following Patent Document 1, the indoor check with the electronic key is performed with the brake pedal depressed, and the engine is automatically started when the rotary switch of the ignition switch device is in the auto position. A vehicle engine control system is described which is manually started when not in the auto position.

JP 2003-269305 A

  In the vehicle engine control system described in Patent Document 1, the driver needs to switch between the automatic start and the manual start by a rotary switch. Switching with the rotary switch is a troublesome operation for the driver.

  Therefore, the present invention has been made to solve such a problem, and provides an engine control device capable of switching between an automatic engine start and a manual start without requiring a driver to perform troublesome work. For the purpose.

In order to solve the above-described problem, an engine start control system according to the present invention is a state in which a stop operation is detected by a stop operation detecting unit that detects a stop operation, a collating unit that collates vehicle keys, and a stop operation detecting unit. by then automatically start the engine when the verification by the verification means succeeds, the engine manually startable state when the verification by the verification means in the state where the stop operation is not detected succeeded by the stop operation detection means that the And engine start control means for switching between automatic start and manual start of the engine. The automatic engine start means that the driver starts the engine without operating the engine switch. The stop operation includes a brake operation, a side brake operation, an operation for setting the gear to parking, and the like.

  According to the present invention, the engine is automatically started when the collation by the collating unit is successful while the stop operation detecting unit is detecting the stop operation, and the collation is performed when the stop operation detecting unit is not detecting the stop operation. By making the engine ready for manual start when the verification by means is successful, it is possible for the driver to switch between automatic start and manual start without performing troublesome operations such as switch operation. Further, by enabling switching between automatic start and manual start of the engine, the engine start method can be selected according to the driver's preference.

  In the engine start control system according to the present invention, the stop operation is preferably a brake operation. According to this, in the state where the stop operation detecting means detects the brake operation and the collation by the collating means succeeds, the engine is automatically started, and the stop operation detecting means does not detect the brake operation. When the collation by the collation means is successful, the engine can be manually started so that the driver can switch between automatic start and manual start by brake operation without performing troublesome operations such as switch operation. Is possible. Further, by enabling switching between automatic start and manual start of the engine, the engine start method can be selected according to the driver's preference.

  In the engine start control system according to the present invention, the engine start control means preferably starts the engine by turning on the engine switch when the engine is in a state where the engine can be manually started. According to this, the driver can start the engine manually by a normal operation. As a result, it becomes possible for the driver to switch between automatic start and manual start of the engine without performing troublesome operations such as switch operation. Further, by enabling switching between automatic start and manual start of the engine, the engine start method can be selected according to the driver's preference.

  According to the engine start control system of the present invention, automatic start and manual start of the engine can be switched without a troublesome operation by the driver.

1 is a schematic configuration diagram of an engine start control system according to an embodiment of the present invention. It is a flowchart for demonstrating the engine starting process of the engine starting control system which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 shows a schematic configuration diagram of an engine start control system 1 of the present embodiment. The engine start control system 1 is a system that is mounted on a vehicle and controls the start of the engine of the vehicle. As shown in FIG. 1, the engine start control system 1 includes an engine start control device 2, a smart system 3, a battery 4, a brake pedal sensor 5, an engine switch 6, and an engine ECU 7. .

  When the engine start control device 2 detects a stop operation and collation by a later-described collation ECU (Electronic Control Unit) 31 succeeds, the engine is automatically started and the stop operation is not detected. When the verification by the verification ECU 31 is successful, the engine functions as an engine start control means for allowing the engine to be manually started. As shown in FIG. 1, the engine start control device 2 includes an ECU 21 and an indoor R / W (Reader / Writer) 22. The engine start control device 2 transmits and receives data to and from the portable device 8 carried by the driver. The engine start control device 2 may include an outdoor R / W 23. The automatic engine start means that the driver starts the engine without pressing the engine switch.

  The ECU 21 is a device that controls the engine start control device 2. The ECU 21 is mounted on a vehicle and is mainly configured by a computer including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output interface, and the like. The ECU 21 is connected to the indoor R / W 22, the battery 4, the brake pedal sensor 5, the engine switch 6, and the engine ECU 7. The ECU 21 is configured to be able to communicate with the tuner 32 and the LF transmitter 33 by wireless communication. When the engine start control device 2 includes the outdoor R / W 23, the ECU 21 is also connected to the outdoor R / W 23. The ECU 21 includes a brake signal detection unit 211, an R / W transmission / reception unit 212, a smart system communication unit 213, a collation result determination unit 214, an engine signal detection unit 215, and an engine start control unit 216.

  The indoor R / W 22 is a device that is disposed, for example, in front of the driver's seat and transmits / receives data to / from the portable device 8 carried by the driver. The indoor R / W 22 communicates with the portable device 8 by short-range wireless communication such as NFC (Near Field Communication). The indoor R / W 22 can communicate within a range of, for example, a radius of several tens of centimeters. For example, the indoor R / W 22 transmits a request signal received from the ECU 21 to the portable device 8. The indoor R / W 22 receives, for example, a response signal including an ID code unique to the portable device 8 from the portable device 8.

  The outdoor R / W 23 is a device that is arranged on, for example, a door on the driver's seat side and transmits / receives data to / from the portable device 8 carried by the driver. The outdoor R / W 23 communicates with the portable device 8 by short-range wireless communication such as NFC, for example. For example, the outdoor R / W 23 can communicate within a radius of several tens of centimeters. The outdoor R / W 23 transmits the request signal received from the ECU 21 to the portable device 8. The outdoor R / W 23 receives, for example, a response signal including an ID code unique to the portable device 8 from the portable device 8.

  The smart system 3 is mounted on a vehicle, communicates with the engine start control device 2 by wireless communication, and collates the portable device 8. As shown in FIG. 1, the smart system 3 includes a verification ECU 31, a tuner 32, and an LF transmitter 33. This smart system 3 may be one that is conventionally mounted on a vehicle. In this embodiment, the ID code unique to the portable device 8 is used as a vehicle key. Therefore, when the collation of the ID code of the portable device 8 is successful, the driver who owns the portable device 8 can unlock and lock the door, start the engine, and the like.

  The verification ECU 31 functions as a verification unit for verifying an ID code unique to the portable device 8. The verification ECU 31 is mainly configured by a computer including a CPU, a ROM, a RAM, an input / output interface, and the like. The verification ECU 31 is connected to the tuner 32 and the LF transmitter 33. The verification ECU 31 stores a request code for transmitting the ID code in the ROM, and periodically outputs the request code to the LF transmitter 33 as a request signal. When the verification ECU 31 receives the ID signal from the tuner 32, the ID code indicated by the received ID signal is a regular ID code with reference to the ID code of the registered portable device 8 stored in a storage medium such as a RAM. Authentication of whether or not. If it authenticates that it is a regular ID code, the collation result signal which shows a collation result will be output to LF transmitter 33. FIG.

  The verification ECU 31 communicates with each part of the vehicle via the in-vehicle network NW. Note that the in-vehicle network NW is based on a communication protocol such as CAN (Controller Area Network) or LIN (Local Interconnect Network).

  The tuner 32 and the LF transmitter 33 transmit and receive data to and from the engine start control device 2 by wireless communication. For example, the tuner 32 receives a response signal transmitted from the smart system communication unit 213 of the ECU 21, decodes the response signal, and outputs an ID signal indicating an ID code unique to the portable device 8 included in the response signal to the verification ECU 31. . For example, the LF transmitter 33 receives a request signal and a verification result signal from the verification ECU 31, modulates and amplifies each signal, and transmits the modulated signal to the smart system communication unit 213 of the ECU 21.

  The battery 4 is a device that is mounted on the vehicle and supplies power to the engine start control device 2. The battery 4 supplies power to other devices in the vehicle. Further, the battery 4 may be a dedicated battery for the engine start control device 2.

  The brake pedal sensor 5 is provided, for example, in the brake pedal, and detects whether or not the brake pedal has been depressed by the driver. The brake pedal sensor 5 outputs a brake signal to the ECU 21. The brake pedal sensor 5 turns the brake signal on (for example, high level output) when the brake pedal is depressed, and turns off the brake signal (for example, low level output) when the brake pedal is not depressed, for example. To do.

  The engine switch 6 is composed of, for example, a push button sensor, and is provided in an instrument panel portion in front of the driver's seat. The engine switch 6 alternately outputs an engine-on signal and an engine-off signal to the ECU 21 each time it is pressed by the driver. The engine switch 6 may turn the engine signal on (high level output) and off (low level output) instead of the engine on signal and the engine off signal.

  The engine ECU 7 is a device that controls an engine (not shown). The engine ECU 7 is mounted on a vehicle, and is configured mainly by a computer including a CPU, a ROM, a RAM, an input / output interface, and the like. The engine ECU 7 controls the start of the engine based on, for example, an engine start control signal from the ECU 21.

  The portable device 8 is a device that wirelessly communicates with the engine start control device 2, and is an information terminal that can be carried by a driver such as a cellular phone. As shown in FIG. 1, the portable device 8 includes a communication unit 81, an operation unit 82, a control unit 83, and a storage unit 84. The portable device 8 may be an IC card.

  The communication unit 81 functions as a communication unit that communicates with the indoor R / W 22 and the outdoor R / W 23 of the engine start control device 2. The communication unit 81 communicates with the indoor R / W 22 and the outdoor R / W 23 by near field communication such as NFC, for example. The communication unit 81 transmits a response signal including an ID code unique to the portable device 8, a predetermined control signal, and the like to the indoor R / W 22 and the outdoor R / W 23 in accordance with an instruction from the control unit 83 to be described later. The communication unit 81 receives request signals from, for example, the indoor R / W 22 and the outdoor R / W 23.

  The operation unit 82 is constituted by a touch panel, for example. The driver performs a predetermined operation, for example, by pressing a predetermined icon on the touch panel. The operation unit 82 may be composed of a plurality of buttons.

  The control unit 83 controls the portable device 8 and is mainly configured by a computer including a CPU, a ROM, a RAM, an input / output interface, and the like. When the control unit 83 receives the request signal via the communication unit 81, the control unit 83 reads information unique to the portable device 8 including the ID code from the storage unit 84 to be described later, and transmits the indoor R / R as a response signal via the communication unit 81. Transmit to W22, outdoor R / W23. In addition, when a predetermined operation is performed by the driver using the operation unit 82, the control unit 83 transmits a corresponding control signal to the indoor R / W 22 and the outdoor R / W 23 via the communication unit 81. . For example, when an icon indicating door locking or unlocking is pressed, the control unit transmits a door locking signal and a door unlocking signal to the outdoor R / W 23 via the communication unit 81.

  The storage unit 84 is a storage unit that stores an ID code unique to the portable device 8. The storage unit 84 stores attribute information and the like of the portable device 8 in addition to the ID code.

  Subsequently, each function of the ECU 21 of the present embodiment will be described below.

  The brake signal detection unit 211 functions as a brake signal detection unit that detects a brake signal. The brake signal detection unit 211 receives the brake signal output from the brake pedal sensor 5 and determines whether the brake signal is on or off. For example, the brake signal detection unit 211 determines that the brake signal is on when the brake signal is at a high level, and determines that the brake signal is off when the brake signal is at a low level.

  The R / W transmission / reception unit 212 performs data transmission / reception between the indoor R / W 22 and the outdoor R / W 23. The R / W transmission / reception unit 212 periodically transmits a request signal for causing the portable device 8 to transmit an ID code to the indoor R / W 22 and the outdoor R / W 23. This request signal may be the one received by the smart system communication unit 213 from the smart system 3 or may be newly generated in the ECU 21. In addition, the R / W transmission / reception unit 212 receives, for example, a response signal including an ID code unique to the portable device 8 from the indoor R / W 22 and the outdoor R / W 23.

  The smart system communication unit 213 functions as a smart system communication unit that transmits and receives data to and from the smart system 3 by wireless communication. For example, the smart system communication unit 213 modulates the response signal received by the R / W transmission / reception unit 212 and transmits the modulated response signal to the smart system 3. For example, the smart system communication unit 213 receives a request signal from the LF transmitter 33 of the smart system 3, demodulates the request signal, and transmits the demodulated signal to the R / W transmission / reception unit 212. Further, the smart system communication unit 213 receives a verification result signal from the LF transmitter 33 of the smart system 3, for example, demodulates the verification result signal, and transmits the demodulated result signal to the verification result determination unit 214.

  The verification result determination unit 214 functions as a verification result determination unit that determines the result of verification performed by the verification ECU 31 of the smart system 3. A verification result signal is received from the smart system 3 via the smart system communication unit 213, and it is determined whether the verification has succeeded or failed based on the verification result indicated by the verification result signal.

  The engine signal detection unit 215 functions as an engine signal detection unit that detects an engine on signal and an engine off signal transmitted when the engine switch 6 is operated. The engine signal detector 215 detects whether the engine switch 6 is on or off by detecting an engine on signal and an engine off signal. The engine signal detection unit 215 notifies the engine start control unit 216 whether the engine switch 6 is on or off.

  The engine start control unit 216 functions as an engine start control unit that controls the engine ECU 7 to start the engine. The engine start control unit 216 controls the engine ECU 7 to perform engine start control when the brake signal detection unit 211 detects the ON state of the brake signal and the collation result determination unit 214 determines that the collation result is successful. Output a signal. Further, the engine start control unit 216 sets the engine startable state when the brake signal detection unit 211 detects the OFF state of the brake signal and the verification result determination unit 214 determines that the verification result is successful. To do. For example, a status register indicating the engine status is provided in the ECU 21, and the engine start control unit 216 sets the flag indicating the startable state in the status register to be in a startable state.

  In the engine startable state, the engine start control unit 216 detects that the brake signal detection unit 211 detects the on state of the brake signal and the engine signal detection unit 215 detects the on state of the engine switch 6. An engine start control signal is output to the engine ECU 7. Further, the engine start control unit 216 detects that the brake signal detection unit 211 detects an off state of the brake signal and the engine signal detection unit 215 detects an on state of the engine switch 6 in an engine startable state. In addition, processing in various modes is performed. The various modes are, for example, an OFF mode, an ACC mode, and an ON mode, and these modes may be switched cyclically each time the engine switch 6 is pressed. In this case, the engine switch 6 outputs an engine-on signal in the ON mode. The OFF mode is a mode in which the emergency blinking lamp is controlled to be usable. The ACC mode is a mode in which an electrical component such as an accessory socket is controlled to be usable. The ON mode is a mode in which all electrical components are controlled to be usable.

  Next, the procedure of the engine start process in the engine start control system 1 according to the present embodiment will be described using the flowchart of FIG.

  First, the brake signal detector 211 determines whether the brake signal is on or off (S1). When it is determined that the brake signal is in the on state, it is determined whether or not the indoor verification of the ID code of the portable device 8 has been started (S2). For example, the response signal received from the portable device 8 by the indoor R / W 22 is received by the R / W transmission / reception unit 212 to recognize that the indoor verification has started. If it is determined in S2 that indoor verification has not been started, the process returns to S1.

  On the other hand, if it is determined in S <b> 2 that the indoor verification has been started, the smart system communication unit 213 transmits the response signal received by the R / W transmission / reception unit 212 to the smart system 3. In the smart system 3, when the response signal is received via the tuner 32, the verification ECU 31 performs verification of the ID code included in the response signal, and sends the verification result signal indicating the verification result via the LF transmitter 33 to the engine start control device. 2 to send. And the smart system communication part 213 receives the collation result signal which shows a collation result.

  Subsequently, the verification result determination unit 214 determines the verification result based on the verification result signal received by the smart system communication unit 213 (S3). When it is determined that the collation result is NG, the process returns to S1. On the other hand, when it is determined in S3 that the collation result is OK, the engine start control unit 216 outputs an engine start control signal to the engine ECU 7 to start the engine (S11). Then, the engine start process in the engine start control system 1 is terminated.

  On the other hand, if it is determined in S1 that the brake signal is in the OFF state, it is determined whether or not the indoor verification of the ID code of the portable device 8 has been started in the same manner as S2 (S4). In this determination, if it is determined that the indoor verification has not been started, the process returns to S1. On the other hand, in the determination of S4, when it is determined that the indoor verification has been started, the smart system communication unit 213 transmits the response signal received by the R / W transmission / reception unit 212 to the smart system 3. Then, the smart system communication unit 213 receives collation result information indicating the collation result from the smart system 3.

  Subsequently, similarly to S3, the matching result determination unit 214 determines the matching result based on the matching result signal received by the smart system communication unit 213 (S5). When it is determined that the collation result is NG, the process returns to S1. On the other hand, when it is determined in S5 that the collation result is OK, the engine start control unit 216 sets the engine startable state (S6). For example, a status register indicating the engine status is provided in the ECU 21, and the engine start control unit 216 sets the flag indicating the startable state of the status register to the engine startable state.

  Next, the brake signal detection unit 211 determines whether the brake signal is on or off (S7). When it is determined that the brake signal is off, the engine signal detection unit 215 determines whether the engine switch is turned on (S9). If it is determined that the engine switch is not turned on, the process returns to S7. If it is determined in S9 that the engine switch has been turned on, the ECU 21 performs processing according to various modes, and returns to S7.

  If it is determined in S7 that the brake signal is on, the engine signal detector 215 determines whether or not the engine switch is turned on (S8). If it is determined that the engine switch is not turned on, the process returns to S7. If it is determined in S8 that the engine switch is turned on, the engine start control unit 216 outputs an engine start control signal to the engine ECU 7 to start the engine (S11). Then, the engine start process in the engine start control system 1 is terminated.

  In the flowchart of FIG. 2, the control for starting the engine by the processing procedure of S1, S2, S3, and S11 is called jump start. That is, the jump start automatically starts the engine without the driver operating the engine switch. On the other hand, in the flowchart of FIG. 2, the control for starting the engine by the processing procedure of S1, S4, S5, S6, S7, S8 and S11 is normal engine start control.

  As described above, according to the engine start control system 1 of the present embodiment, the collation result determination unit 214 determines that the collation result is successful while the brake signal detection unit 211 detects the on state of the brake signal. In addition, the engine start control unit 216 outputs an engine start control signal to the engine ECU 7 (jump start), so that the engine can be automatically started without performing a troublesome operation of the driver operating the engine switch.

  Further, according to the engine start control system 1 of the present embodiment, when the collation result determination unit 214 determines that the collation result is successful while the brake signal detection unit 211 detects the off state of the brake signal, The engine start control unit 216 sets the engine in a startable state. When the engine signal can be started and the engine signal detection unit 215 detects the on state of the engine switch while the brake signal detection unit 211 detects the on state of the brake signal, the engine start control unit 216 By outputting an engine start control signal to the engine ECU 7, the driver can start the engine manually. In this way, the driver can switch between automatic engine start (jump start) and manual start depending on whether indoor verification is performed with the brake pedal depressed, or whether indoor verification is performed without depressing the brake pedal. Is possible.

  Further, according to the engine start control system 1 of the present embodiment, it is possible to select the engine start method according to the driver's preference by making it possible to switch between the jump start and the normal engine start method. is there.

  The above-described embodiment describes the best embodiment of the engine start control system according to the present invention, and the engine start control system according to the present invention is not limited to the one described in the present embodiment. The engine start control system according to the present invention may be modified from the engine start control system according to the embodiment or applied to other ones without changing the gist described in each claim. For example, communication between the portable device 8 and the indoor R / W 22 and between the portable device 8 and the outdoor R / W 23 may be performed by human body communication via a human body instead of short-range wireless communication. Good.

  In the above-described embodiment, the brake signal detection unit 211 determines whether the brake operation is being performed by determining whether the brake signal is on or off. By the way, even when the side brake is on or when the gear is set to parking, the vehicle does not start traveling. For this reason, the engine start control system replaces the brake signal detection unit 211 with a stop operation detection unit (stop operation detection means) that detects not only a brake operation but also a stop operation such as a side brake operation or an operation for setting a gear to parking. The engine start control unit 216 automatically starts the engine when the indoor collation is successful in a state where the stop operation detection unit detects the stop operation, and the stop operation detection unit detects the stop operation. If the indoor verification is successful in a state where the engine is not connected, the engine may be in a state where it can be manually started.

  In addition, when the brake signal detection unit 211 detects the brake signal OFF state and receives a response signal from the indoor R / W 22, the ECU 21 simply performs a process of transferring the response signal to the smart system 3. It may be. On the other hand, when the brake signal detection unit 211 detects the ON state of the brake signal and receives a response signal from the indoor R / W 22, the ECU 21 transfers the response signal to the smart system 3 and An engine-on signal may be generated and transmitted to the verification ECU 31.

  By generating a pseudo engine-on signal and transmitting it to the verification ECU 31, the verification ECU 31 recognizes that the engine switch is on. For this reason, the verification ECU 31 starts the engine without actually operating the engine switch when the verification of the ID code included in the received response signal is successful. That is, the engine can be automatically started and manually started using the function of the conventional smart system 3. Further, the engine start control device 2 does not need to be connected to the engine switch 6 or the engine ECU 7, and the configuration can be simplified. The ECU 21 needs to further include an engine-on signal generation unit that artificially generates an engine-on signal, but the collation result determination unit 214, the engine signal detection unit 215, and the engine start control unit 216 are not necessary.

DESCRIPTION OF SYMBOLS 1 ... Engine start control system, 2 ... Engine start control apparatus, 3 ... Smart system, 4 ... Battery, 5 ... Brake pedal sensor, 6 ... Engine switch, 7 ... Engine ECU, 8 ... Portable machine, 21 ... ECU, 22 ... R / W for indoor use, 23 ... R / W for outdoor use, 31 ... Verification ECU, 32 ... Tuner, 33 ... LF transmitter, 81 ... Communication unit, 82 ... Operation unit, 83 ... Control unit, 84 ... Storage unit, 211 ... brake signal detection unit, 212 ... R / W transmission / reception unit, 213 ... smart system communication unit, 214 ... collation result determination unit, 215 ... engine signal detection unit, 216 ... engine start control unit, NW ... in-vehicle network

Claims (1)

Stop operation detecting means for detecting the stop operation;
Verification means for verifying the vehicle key;
The engine is automatically started when collation by the collating unit is successful in a state where the stop operation is detected by the stop operation detecting unit, and by the collating unit in a state where the stop operation is not detected by the stop operation detecting unit. An engine start control means for switching between automatic start and manual start of the engine by allowing the engine to be manually started when verification is successful;
An engine start control system comprising:

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