JP2012127162A - On-vehicle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle device that enables an operation of a vehicle-mounted function to be switched depending on an occupant's intention, without adding a physical switch.SOLUTION: An operation state of an operation unit for performing a first predetermined function of a vehicle is detected. The operation state is set as operation state information by being associated with an identification code for identifying the operation state for the first function. It is determined whether or not a second predetermined function of the vehicle is permitted to be performed, on the basis of the operation state information associated with the first function. The performance of the second function is controlled on the basis of the result of determination.

Description

  The present invention relates to an in-vehicle device mounted on a vehicle.

  A control unit for realizing various functions is mounted on the vehicle. These functions are different for each vehicle type, and some are optional. In addition, for functions that require user switch operation, a space for mounting the switch in the vehicle is secured in advance.

  Some of them are provided with a circuit or the like corresponding to the optional function in advance so that the optional function can operate. For example, a headlamp lighting device has been devised that identifies whether a low beam lamp is an HID lamp or a halogen lamp, and performs lamp lighting control according to the identification result (see Patent Document 1). In this apparatus, it is only necessary to replace the lamp, and there is no need for the user to add a new operation or change the circuit.

JP 2008-230509 A JP 2005-001576 A

  In the configuration of Patent Document 1, for example, a user who uses only a halogen lamp and does not replace the HID lamp does not need a lighting circuit for an HID lamp that is more complicated and expensive than a lighting circuit for a halogen lamp. You might be frustrated that something that you don't need is included in your purchase.

  There is a daytime running lamp device (DRL device) for dimming a headlight, for example, in order to easily inform a pedestrian, a preceding vehicle, or an oncoming vehicle of the presence of the vehicle during daytime driving (Patent Literature). 2). When this DRL device is retrofitted to a vehicle that does not have optional settings, a switch for selecting one of low beam lighting, high beam, and DRL lighting is required. However, since there is no space to install this switch originally, By retrofitting a switch near the center console, there is a problem that the design inside the vehicle is damaged.

  Against the background of the above problems, an object of the present invention is to provide an in-vehicle device that enables operation switching of a vehicle-mounted function by an occupant's intention without adding a physical switch.

Means for Solving the Problems and Effects of the Invention

  An in-vehicle device for solving the above problems includes an operation unit operated by a user, an operation state detection unit detecting an operation state of the operation unit, and a detection in order to execute a first predetermined function in the vehicle. An operation state information output unit that outputs the operation state as operation state information in association with an identification code for identifying that the operation state is for the first function, an operation state information acquisition unit that acquires operation state information, A second function execution determination unit that determines whether to permit execution of a predetermined second function in the vehicle based on the operation state information associated with the acquired first function; and the acquired operation state A storage unit that stores information or a result of determination; a second function that controls execution of the second function based on the determination result stored in the storage unit or the determination result of the second function execution determination unit; Characterized in that it comprises a control unit.

  With the above configuration, when the second function is added, the passenger's intention is not added without adding a physical switch (that is, an operation unit) for setting whether to permit the execution of the second function. This makes it possible to switch the operation of the on-vehicle function.

  The in-vehicle device of the present invention includes an engine start state detection unit that detects a start state of the engine of the vehicle, and the operation state information acquisition unit operates within a predetermined time after detecting the engine start state. The state information is acquired, and the second function execution determination unit determines whether to permit execution of the second function based on the acquired operation state information.

  With the above-described configuration, it is possible to prevent the operation state of the second function from being switched to something not intended by the occupant due to control switching of the first function by the operation unit.

  The operation unit in the in-vehicle device of the present invention includes at least one of a light switch for turning on / off the lighting device of the vehicle and a door lock switch for locking / unlocking the door of the vehicle.

  With the above-described configuration, it is possible to switch the operation state of the on-vehicle function by the occupant's intention without adding a new physical switch.

  Moreover, the 2nd function in the vehicle-mounted apparatus of this invention is a daytime running light function.

  With the above configuration, any of low beam lighting, high beam lighting, and DRL lighting can be selected without adding a new switch.

  The in-vehicle device of the present invention includes a vehicle speed detection unit that detects the speed of the vehicle, and the second function is a vehicle speed response that automatically locks the door when the vehicle speed exceeds a predetermined value. Type automatic door lock function.

  With the above configuration, it is possible to select whether or not to perform the “vehicle speed-sensitive automatic door lock function” without adding a new switch.

The block diagram which shows the structure of a vehicle-mounted apparatus. The flowchart explaining operation state information output processing. The flowchart explaining operation state information storage processing. The flowchart explaining operation control processing.

  Hereinafter, the in-vehicle device of the present invention will be described with reference to the drawings. In FIG. 1, the structure of the vehicle-mounted apparatus 1 is shown. The in-vehicle device 1 includes a first control unit 10, an operation state information storage unit 30, and a second control unit 40.

  The first control unit 10 is a well-known CPU 11, a ROM 12 or RAM 13 in which various programs (collectively referred to as “control program”) are stored, a signal input / output circuit I / O 14, and a nonvolatile storage medium such as a flash memory. A certain memory 15 and a LAN I / F 16 that performs data communication with other units via an in-vehicle LAN 60 are configured as a computer connected by a bus line 17. The CPU 11 corresponds to an operation state detection unit and an engine start state detection unit of the present invention. The LAN I / F 16 corresponds to the operation state information output unit of the present invention.

  The first control unit 10 includes a light switch 21 for turning on / off a light such as a headlight included in the lighting device 27, and a door lock for locking / unlocking each door of the vehicle. Each door of the vehicle including a switch 22, a vehicle speed sensor 23 for detecting the speed of the vehicle, an ignition switch 24 for starting the engine, a lamp 27 such as a headlight and a light control relay, a motor, etc. A door lock actuator 28 for locking / unlocking is connected. The light switch 21 and the door lock switch 22 correspond to the operation unit of the present invention. Further, the vehicle speed sensor 23 corresponds to a vehicle speed detection unit of the present invention.

  With the configuration as described above, when the first control unit 10 detects the operation of the light switch 21, for example, based on the state of the ignition switch 24, the first control unit 10 controls lighting / extinguishing of each light of the lighting device 27. When the operation of the door lock switch 22 is detected, the door lock actuator 28 is controlled to be locked / unlocked. The lighting / extinguishing of each light of the lighting device 27 or the operation of locking / unlocking the door lock actuator 28 corresponds to the first function of the present invention.

  The operation state information storage unit 30 includes a CPU 31, a non-volatile storage medium such as a flash memory or a storage device 32 constituted by a hard disk device, and a LAN I / F 33. The CPU 31 corresponds to the second function execution determination unit of the present invention. The storage device 32 corresponds to the storage unit of the present invention. The LAN I / F 33 corresponds to the operation state information acquisition unit of the present invention.

  The second control unit 40 is configured as a computer including a known CPU 41, a ROM 42 in which various programs are stored, a LAN I / F 43, and the like. Further, the above-described DRL device 51 is connected to the second control unit 40, and DRL lighting / extinguishing is performed according to a control instruction from the second control unit 40. The CPU 41 corresponds to the second function execution control unit of the present invention.

  The operation state information output process in the first control unit 10 will be described with reference to FIG. This process is included in the control program described above, and is repeatedly executed at a predetermined timing together with other processes included in the program. First, it is determined whether or not the engine is being started. That is, when it is detected that the state of the ignition switch 24 has changed from the off (ie, engine stop) state to the on (ie, engine start) state, it is determined that the engine is being started thereafter. When it is determined that the engine is starting (S11: Yes), it is determined whether or not the vehicle is stopped. For example, if the vehicle speed detected by the vehicle speed sensor 23 is 0 km / h, it is determined that the vehicle is stopped. Alternatively, an operating state of a parking brake (also referred to as a parking brake, not shown) may be detected, and it may be determined that the vehicle is stopped when the parking brake is operating.

  When it is determined that the vehicle is stopped (S12: Yes), the elapsed time from the start of the engine, that is, the elapsed time after the state of the ignition switch 24 transitions from the off state to the on state is measured (S13). .

  Further, step S12 may be skipped so as not to determine whether or not the vehicle is stopped.

  When the measured elapsed time exceeds a time threshold (for example, 30 seconds) stored in advance in the memory 15 (S14: Yes), this process is terminated. On the other hand, when the time threshold is not exceeded (S14: No), switch information such as the light switch 21 is acquired (S15). When an operation of a predetermined switch (here, referred to as the light switch 21) is detected (S16: Yes), the operation state is analyzed (S17), and a device for which a predetermined operation is permitted. An operation permission determination for the DRL device 51 is performed here (S18).

  In addition, when the next operation of the switch is not performed within a predetermined time, for example, 5 seconds after the switch is operated, it is considered that the user has finished the operation of the switch. The operation state may be analyzed based on the previous user operations.

  For example, based on whether or not the operation state of the switch matches a predetermined operation state stored in the memory 15 and corresponding to the operation permission or operation disapproval, the operation permission or operation disapproval is determined. .

  For example, if the light switch 21 has four positions “OFF”, “Auto (automatic lighting)”, “vehicle width light ON”, and “headlight ON”, the light switch 21 is not “OFF” from “OFF”. The number of times of movement to the position is counted, and if the number is 3 times (for example, “OFF” → “Auto” → “OFF” → “Auto” → “OFF” → “Auto”), the operation of the DRL device 51 is performed. Permitted, and if it is five times, the operation of the DRL device 51 is not permitted.

  In addition, the state where the light switch 21 is moved from the position (for example, “OFF”) to another position (for example, “headlight ON”) and returned to the original position (“OFF”) at the time of engine start is defined as one time. Also good. This prevents the user from forgetting to return the switch to the original position.

  Finally, the operation state (in this case, the determination result) is output via the LAN I / F 16 together with the identification code for specifying the first control unit 10 stored in advance in the memory 15 (S19).

  In the processing described above, the operation state of the switch may be output together with the identification code. In this case, steps S17 and S18 are not executed.

In step S16 described above, the switch for detecting the operation may be the door lock switch 22, and the change in the state of the door lock switch 22 may be counted by any of the following methods.
Count the number of times the door lock switch 22 has changed from the unlocked state to the locked state.
Count the number of times the door lock switch 22 has changed from the locked state to the unlocked state.
Count both the number of times the door lock switch 22 has transitioned from the unlocked state to the locked state and the number of times the door lock switch 22 has transitioned from the locked state to the unlocked state.

  In the above-described processing, when the light switch 21 or the door lock switch 22 is operated for setting the operation permission / non-permission of the device to be permitted to operate, that is, the elapsed time from the start of the engine is a time threshold. As long as the switch does not exceed, even if these switches are operated, the operation corresponding to the operation of the switches (lights on, door locking / unlocking) may not be performed.

  The operation state information storage process in the operation state information storage unit 30 will be described with reference to FIG. This process is included in the program stored in the storage device 32, and is repeatedly executed by the CPU 31 together with the other processes included in the program and the other processes at a predetermined timing.

  First, as in step S11 of FIG. 2, it is determined whether or not the engine is being started. At this time, the state of the ignition switch 24 may be detected directly, or may be acquired from another unit (for example, the first control unit 10) via the in-vehicle LAN 60. When it is determined that the engine is being started (S31: Yes), it is determined whether or not the vehicle is stopped as in step S12 of FIG. When it is determined that the vehicle is stopped (S32: Yes), the elapsed time from the start of the engine is measured as in step S13 of FIG. 2 (S33).

  When the measured elapsed time exceeds a time threshold (for example, 30 seconds) stored in advance in the storage device 32 (S34: Yes), this process is terminated. On the other hand, when the time threshold is not exceeded (S34: No), the operation state (switch operation state and identification code) output from the first control unit 10 is acquired via the LAN I / F 33 (S35).

  Note that step S32 may be skipped so as not to determine whether or not the vehicle is stopped. In addition, the operation state information may be acquired at all times regardless of the elapsed time from the start of the engine. In this case, steps S31 to S34 are not executed.

  When the acquired operation state includes the operation state of the light switch 21, the operation state is analyzed (S 36), and a predetermined operation state corresponding to the operation permission or operation disapproval stored in the storage device 32. Is permitted or not permitted based on whether or not (S37). Then, the determination result is associated with the identification code and stored in the storage device 32 as operation state information (S38).

  Further, when the acquired operation state includes an operation permission determination result for a target device (in this case, the DRL device 51) to which the operation is permitted, the determination result is associated with an identification code and stored in the storage device 32 as operation state information. Store (S38). At this time, steps S36 and S37 are not executed. In this case, whether the operation is permitted or not permitted is determined by the second control unit 40 (described later).

  Further, when the acquired operation state includes the operation content of the light switch 21, the operation permission determination may not be performed and the operation state information may be stored as it is in the storage device 32. At this time, steps S36 and S37 are not executed.

  The operation state information may include information for specifying a target device (for example, the DRL device 51) that is permitted to operate.

  The operation control process in the second control unit 40 will be described with reference to FIG. This process is included in the program stored in the ROM 42 and is repeatedly executed by the CPU 41 together with other processes at a predetermined timing together with other processes included in the program.

First, the operation state information corresponding to the DRL device 51 is acquired from the operation state information storage unit 30 via the LAN I / F 43 (S51). Next, the operation permission determination of the DRL device 51 is performed using any of the following methods (S52).
When the operation state information includes the operation permission determination result, the operation permission determination is performed using the determination result.
When the operation state information includes the operation content of the light switch 21, the operation is permitted based on whether or not the operation state information matches a predetermined operation state corresponding to the operation permission or operation disapproval stored in the ROM 42 in advance. Make a decision.

  When it is determined that the operation is permitted (S53), the target device for which the operation is permitted (here, the DRL device 51) is operated (S54). That is, the DRL device 51 corresponds to the second function of the present invention.

  Further, a target device that is permitted to operate is the door lock actuator 28, and based on the operation state information, when the vehicle speed exceeds a predetermined value, all the doors of the vehicle are locked. The automatic door lock may be permitted / not permitted. In this case, the vehicle speed sensitive automatic door lock corresponds to the second function of the present invention.

  In the above-described configuration, the first control unit 10, the operation state information storage unit 30, and the second control unit 40 are configured as separate units. However, the first control unit 10 includes the operation state information storage unit 30. The configuration may be such that the operation state information storage unit 30 is included in the second control unit 40. The first control unit 10 may include the operation state information storage unit 30 and the second control unit 40.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus 10 1st control unit 11 CPU (operation state detection part, engine starting state detection part)
16 LAN I / F (operation status information output unit)
21 Light switch 22 Door lock switch (operation part)
23 Vehicle speed sensor (vehicle speed detector)
24 Ignition switch (operation unit)
27 Lighting device 28 Door lock actuator 30 Operation state information storage unit 31 CPU (second function execution determination unit)
32 Storage device (storage unit)
33 LAN I / F (operation status information acquisition unit)
40 2nd control unit 41 CPU (2nd function execution control part)
43 LAN I / F
51 DRL equipment

Claims (5)

An operation unit operated by a user to execute a predetermined first function in the vehicle;
An operation state detection unit for detecting an operation state of the operation unit;
An operation state information output unit that outputs the detected operation state as operation state information in association with an identification code for identifying that the operation state is for the first function;
An operation state information acquisition unit for acquiring the operation state information;
A second function execution determination unit that determines whether or not to permit execution of a predetermined second function in the vehicle based on operation state information associated with the acquired first function;
A storage unit for storing the acquired operation state information or the determination result;
A second function execution control unit that controls execution of the second function based on the determination result stored in the storage unit or the determination result of the second function execution determination unit;
A vehicle-mounted device comprising: An engine start state detector for detecting a start state of the engine of the vehicle;
The operation state information acquisition unit acquires the operation state information within a predetermined time after detecting the engine start state, and the second function execution determination unit is based on the acquired operation state information. The in-vehicle device according to claim 1, wherein it is determined whether to permit execution of the second function.   The operation unit includes at least one of a light switch for turning on / off a lighting device of the vehicle and a door lock switch for locking / unlocking the door of the vehicle. The in-vehicle device described in 1.   The in-vehicle device according to any one of claims 1 to 3, wherein the second function is a daytime running light function. A vehicle speed detector for detecting the speed of the vehicle;
5. The vehicle speed-sensitive automatic door lock function that automatically locks the door when the vehicle speed exceeds a predetermined value. 5. The in-vehicle device described in 1.

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