KR20160057321A - Vehicle with fuel cells mounted thereon and control method of the vehicle - Google Patents

Abstract

Though there is an error in a lead sensor, a vehicle may move. A method for controlling a vehicle with a fuel cell, performs (a) a process for prohibiting the movement of the vehicle, when the signal of the lead sensor of detecting the opening/closing of the lead door of the gas charge hole of the vehicle indicates that a lead door is open, and (b) performs an process of releasing the prohibition against the movement of the vehicle though the signal of the lead sensor indicates that the lead door is open, if it is determined that there is an error in the lead sensor, or if a predetermined specific operation is carried out. So, the vehicle can move even though the lead door is closed.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle equipped with a fuel cell,

The present application claims priority based on Japanese application of application No. 2014-230976, filed on November 13, 2014, and Japanese application of application No. 2015-88855, filed April 24, 2015, All of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle equipped with a fuel cell and a control method thereof, and more particularly to a countermeasure method when an abnormality occurs in a lead sensor of a hydrogen inlet of a vehicle.

Japanese Unexamined Patent Application Publication No. 2014-14207 discloses a hybrid vehicle comprising a hydrogen inlet, a lead box for protecting the hydrogen inlet from the lead box, a lead sensor for detecting the open / closed state of the lead door of the lead box, A vehicle equipped with a fuel cell equipped with a vehicle speed sensor for detecting the vehicle speed is disclosed. In this vehicle, when the open state of the lead door is detected and the vehicle speed is equal to or lower than the stop determination speed, the vehicle is parked so that the vehicle can not run.

However, if an output signal from the lead sensor is stuck in a state in which an abnormality occurs in the lead sensor and a signal indicating that the lead door is in the open state is established, the lead door is actually closed, ) Can not be done.

The present invention has been made to solve at least a part of the above-described problems, and can be realized in the following modes.

(1) According to one aspect of the present invention, a control method of a vehicle equipped with a fuel cell is provided. The control method includes the steps of: (a) performing a process for prohibiting movement of the vehicle when the signal of the lead sensor for detecting the opening and closing of the lead door of the gas filling port of the vehicle indicates that the lead door is opened; ) In the case where it is determined that there is an abnormality in the lead sensor or a predetermined special operation is performed, even if the signal of the lead sensor indicates that the lead door is opened, . According to this configuration, even when the output signal of the lead sensor indicates that the lead door is open despite the fact that the lead door is actually closed, the prohibition of movement of the vehicle can be released (permitted) It is possible to avoid that the vehicle can not be moved even though it is closed.

(2) In the control method of the above-described aspect, the special operation is an operation in which the driver of the vehicle presses the starter switch of the vehicle after the predetermined special operation processing loop is executed a predetermined number of times, May include a process in which the driver presses the starter switch, a process in which a predetermined notification is made, and a process in which the driver again presses the starter switch. According to this aspect, by performing a special operation that is difficult to be performed in a normal driving situation, it is possible to cancel the movement prohibition of the vehicle.

(3) In the control method of the above-described aspect, the process of performing the notification may be any one of the following: (1) the door is open; (2) the door is closed; (2) And may include at least one. According to this form, the driver's attention can be urged.

(4) In the control method of the above-mentioned aspect, the process of notifying includes a process of presenting a specific display by blinking a predetermined number of times or a predetermined time, and a process of changing the specific display from blinking to non- It may be. According to this mode, a specific indication is displayed in a blinking manner, and from a blinking to a non-indication, the driver's attention can be further urged.

(5) In the control method of the above-mentioned aspect, when it is detected from the signal of the lead sensor that the lead door is closed at a predetermined angle or less, processing for canceling the movement prohibition of the vehicle may be performed. When the lead door is closed at a predetermined angle or less, it is determined that there is an abnormality in the lead sensor, so that the movement prohibition is canceled.

Further, the present invention can be realized in various forms. For example, it can be realized in the form of a vehicle equipped with a fuel cell in addition to a control method of the vehicle on which the fuel cell is mounted.

1 is an explanatory view showing a vehicle equipped with a fuel cell;
FIG. 2 is an explanatory view schematically showing a portion from a fuel gas charging portion of a vehicle to a fuel tank; FIG.
3 is an explanatory diagram showing the relationship between the opening of the lead door and the output signal of the lead sensor;
Fig. 4 is a flow chart showing the operation from the starter switch of the vehicle to the ready-on after charging the gas.
5 is a flowchart showing registration and release of an input history of a special operation;
6 is a flowchart showing an operation from turning on the starter switch of the vehicle to turning off the starter switch in the second embodiment.
7 is an explanatory diagram showing the principle of signal closure fixing determination of the lead sensor;
8 is a flowchart of a determination of closure fixing abnormality.

First Embodiment:

1 is an explanatory view showing a fuel cell vehicle 10 (hereinafter also simply referred to as " vehicle 10 ") on which a fuel cell is mounted. The vehicle 10 includes a fuel cell 100, a control unit 110 (also referred to as an ECU (Electronic Control Unit)), a starter switch 115 (also referred to as an " ignition switch 115 " A power distributing controller 140, a drive motor 150, a drive shaft 160, a power distributing gear 170, a wheel (not shown) 180), and a fuel tank (200).

The fuel cell 100 is a power generation device for electrochemically reacting a fuel gas and an oxidant gas to extract electric power. The fuel tank 200 stores the fuel gas used in the fuel cell 100. In the present embodiment, hydrogen is used as the fuel gas. The control unit 110 controls the operation of the fuel cell 100 and the secondary battery 130 based on the required output value acquired from the required output detection unit 120. [ The required output detection unit 120 detects the amount of depression of an accelerator pedal (not shown) of the vehicle 10, for example, and calculates the demand output (demand output value) from the driver based on the amount of the depression amount of the accelerator pedal Detection. The control unit 110 calculates the amount of power required for the fuel cell 100 from the required output value.

The starter switch 115 is a main switch for switching the start state (ready state, accessory state, ignition on state) and stop state (off state) of the vehicle 10. When the starter switch 115 is pushed once in the state in which the brake pedal is not pressed, the state of the vehicle 10 first becomes the accessory state, and when it is pressed once (second time) State), and when it is pressed once (third time), it is turned off. Also, once it is pressed (fourth time), it is also in the accessory state. Thus, the accessory state, the ignition on state and the off state are circulated and switched. Here, the " accessory state " is an operation state in which a specific auxiliary machine having a small power consumption such as a radio is usable, and the " ignition on state " Means a possible operating state. Also, in the accessory state and the ignition on state, the vehicle 10 can not be frequently driven. When the starter switch 115 is pressed in a state in which the brake pedal is depressed in either the OFF state, the accessory state, or the ignition ON state, the vehicle 10 is in the ready state. The " ready-on state " means a state in which the vehicle 10 can move freely. The " ready-on state " is also simply referred to as " ready-on ". The brake pedal is depressed when the starter switch 115 is depressed so that the vehicle 10 can be frequently operated in the ready-on state, so that the vehicle 10 is not often frequently opposed to the driver's intention after being in the ready- , So as to keep the brakes in advance. When the starter switch 115 is pressed in the ready-on state or a travel prohibited state to be described later, the vehicle 10 is turned off even when the brake pedal is depressed or depressed. The state change of the vehicle 10 when the starter switch 115 is depressed as described above is just an example. Even if the state of the vehicle 10 is switched by the method of pressing the starter switch 115 different from the above description good.

The display panel 118 is used for driving the vehicle 10 such as various states of the vehicle 10 described above, the speed of the vehicle 10, a direction indication, residual fuel amount, mileage, Information or the like.

The secondary battery 130 is used as a power source for the drive motor 150 when the power generation output of the fuel cell 100 is small, for example, immediately after starting the vehicle 10. When the power generation output of the fuel cell 100 is large and sufficient electric power is stored in the secondary battery 130 due to regeneration or the like to be described later, the secondary battery 130 is used as a power source for moving the vehicle 10, May be used. When the secondary battery 130 is used as a power source, the fuel consumption of the fuel cell 100 can be reduced. As the secondary battery 130, it is possible to employ, for example, a nickel metal hydride battery or a lithium ion battery. Charging of the secondary battery 130 may be performed by, for example, directly charging the vehicle 10 using the electric power output from the fuel cell 100 or by supplying the kinetic energy of the vehicle 10 to the driving motor 150 And then charging it by regeneration.

The power distribution controller 140 receives the command from the control unit 110 and outputs the electric power drawn from the fuel cell 100 to the drive motor 150 and the electric power drawn from the secondary battery 130 to the drive motor 150 . The power distribution controller 140 receives the command from the control unit 110 and sends the power regenerated by the drive motor 150 to the secondary battery 130 when the vehicle 10 decelerates. The drive motor 150 functions as an electric motor for moving the wheel 180. The drive motor 150 also functions as a generator that regenerates kinetic energy of the vehicle 10 into electric energy when the vehicle 10 decelerates. The drive shaft 160 is a rotation axis for transmitting the drive force generated by the drive motor 150 to the power distributing gear 170. The power distributing gear 170 distributes the driving force to the left and right wheels 180.

2 is an explanatory view schematically showing the range from the fuel gas charging portion of the vehicle 10 to the fuel tank. 2, a portion of the hydrogen station 50 is also shown. The vehicle 10 includes at least one fuel tank 200, a receptacle 215 as a gas filling port, a fuel gas filling pipe 210 connecting the receptacle 215 and the fuel tank 200, A fuel gas supply pipe 240 for connecting the fuel cell 200 to the fuel cell 100 and a lead box 300 for accommodating the receptacle 215. The hydrogen station 50 includes a gas tank 500, a gas supply pipe 505 and a valve 530 connected to the gas tank 500, a gas supply hose 510 connected to the valve 530, A nozzle 520 provided at the tip of the hose 510, and an infrared transceiver 550. The gas tank 500 is a tank for storing hydrogen. The gas supply hose 510 is a flexible tube connected to the nozzle 520.

The receptacle 215 is a gas filling port when hydrogen is charged, and fits with the nozzle 520 of the hydrogen station 50. Further, the receptacle 215 has a check valve 218 so that the charged hydrogen does not flow backward. The fuel gas filling pipe 210 connects the receptacle 215 and the fuel tank 200 and has a check valve 220. This check valve 220 has a function of preventing the hydrogen filled in the fuel tank 200 from flowing back to the receptacle 215. A stop valve 245 is provided between the check valve 220 and the fuel tank 200. The end of the fuel gas supply pipe 240 on the fuel tank 200 side is connected between the check valve 220 of the fuel gas filler pipe 210 and the stop valve 245. A regulator 250 is disposed in the fuel gas supply pipe 240. The regulator 250 has a function of regulating the pressure of the fuel gas supplied to the fuel cell 100. In the present embodiment, there are two fuel tanks 200, and two check valves 220, a stop valve 245, and a regulator 250 are provided corresponding to the respective fuel tanks 200, respectively. Pressure sensors 260 and 265 are disposed in the fuel gas filling pipe 210 and the fuel gas supply pipe 240, respectively.

The lead box 300 has a function of protecting the receptacle 215. The lead box 300 includes a lead door 310, a hinge 315, a lead opener 320, lead sensors 330 and 340, and an infrared transceiver 350. The lead door 310 is a cover of the lead box 300 and is connected to the lead box 300 through a hinge 315. The hinge 315 is provided with a spring (not shown) for pressing the lead door 310 in the opening direction. A lead opener 320 (also referred to as a " lead open / close mechanism 320 ") is provided on the side opposite to the hinge 315 of the lead box 300. [ The reed opening / closing mechanism 320 has a function of holding the lead door 310 in the closed state (lock function) and a function of releasing the closed state (lock release function). A lead release button 325 is disposed in the vicinity of the driver's seat of the vehicle 10. [ When the lead release button 325 is operated, the lead opening / closing mechanism 320 operates to open the lead door 310. [

In the lead box 300, two lead sensors 330 and 340 are provided. The first lead sensor 330 is provided in the vicinity of the lead opener 320 and the second lead sensor 340 is provided in the vicinity of the hinge 315. When the lead door 310 is opened and closed, the two lead sensors 330 and 340 issue signals indicating whether or not the lead door 310 is open. The opening degree of the lead door 310 when the output signal of the first lead sensor 330 is switched from the open state to the closed state or when the output signal of the first lead sensor 330 is switched from the closed state to the open state, The opening degree of the lead door 310 when the output signal of the switch 310 is switched from the " open " to the " closed " state or the " closed " Here, the " opening degree of the lead door 310 " means the angle of the opened lead door 310 when the state in which the lead door 310 is closed is 0 degrees. The first lead sensor 330 and the second lead sensor 340 may not be disposed in the vicinity of the lead opener 320 and in the vicinity of the hinge 315, respectively. It is not necessary to install two lead sensors, and only one lead sensor may be provided.

An infrared transceiver 350 for communicating with the infrared transceiver 550 of the hydrogen station 50 is provided in the vicinity of the receptacle 215. The infrared transceiver 350 may not be disposed in the vicinity of the receptacle 215 as long as it can communicate with the infrared transceiver 550 of the hydrogen station 50. [ The infrared transceiver 350 transmits the state of filling hydrogen to the fuel tank 200 (for example, the internal pressure and temperature of the fuel tank 200) to the infrared ray transceiver 350 when charging the fuel tank 200 of the vehicle 10 with hydrogen. To the transceiver 550. The control unit (not shown) of the hydrogen station 50 uses the internal pressure and temperature of the fuel tank 200 received via the infrared transceiver 550 to measure the flow rate of hydrogen supplied to the fuel tank 200, .

3 is an explanatory view showing the relationship between the opening degree LO of the lead door 310 and the output signals LS1 and LS2 of the lead sensors 330 and 340. FIG. The output signals LS1 and LS2 are simply referred to as " signals LS1 and LS2 ". The first lead sensor 330 is turned from the "closed" state to the "open" state in the small opening LO1 where the lead door 310 is slightly opened from the closed state (LO = 0 °). Similarly, when the lead door 310 is closed, the signal LS1 changes from "open" to "closed" in this opening LO1. On the other hand, when the lead door 310 is opened, the signal LS2 of the second lead sensor 340 is switched from " closed " to " open " when the opening LO2o is larger than LO1. Further, when the lead door 310 is closed, the signal LS2 changes from " open " to " closed " when the opening degree LO2c is smaller than LO2o. Thus, the signal LS2 of the second lead sensor 340 has a hysteresis. The signal LS1 of the first lead sensor 330 may have the same hysteresis. When the lead door 310 is opened until the nozzle 520 of the hydrogen station 50 can be inserted into the receptacle 215, the two signals LS1 and LS2 are all "open".

Fig. 4 is a flowchart showing the operation from the starter switch 115 (Fig. 1) of the vehicle 10 to the ready-on state after charging the gas. When the control unit 110 detects that the starter switch 115 is turned on in step S100, the process proceeds to step S110. If the ON state of the starter switch 115 is not detected, the process is terminated. In the flowchart shown in Fig. 4, when the starter switch 115 is depressed, it is assumed that the brake pedal is depressed.

In step S110, the control unit 110 determines whether or not the signal LS1 of the first lead sensor 330 indicates " opening " of the lead door 310. [ If the signal LS1 indicates " open ", the control unit 110 proceeds to step S120 described later. On the other hand, when the signal LS1 indicates "closed" in step S110, the control unit 110 proceeds to step S115 and determines whether the signal LS2 of the second lead sensor 340 indicates "open" . If the signal LS2 indicates "open" in step S115, the control unit 110 proceeds to step S120. If the signal LS2 indicates "close", the control unit 110 proceeds to step S170 described later. In other words, when at least one of the signals LS1 and LS2 of the two lead sensors 330 and 340 indicates " open ", the process of step S120 is executed and all of the two signals LS1 and LS2 are & In the case of indicating, the process of step S170 is executed. When the signal LS1 indicates "open" in step S110, the control unit 110 determines whether the signal LS2 of the second lead sensor 340 is "open" before performing the process of step S120, Or not. In this case, whatever the judgment is, the next process goes to step S120. By this process, (1) a state in which all of the two signals LS1 and LS2 indicate "open", (2) a state in which one of the two signals LS1 and LS2 indicates "open" Can be distinguished.

In step S120, the control unit 110 notifies the driver (user) of the notification that the lead door 310 is open, an instruction to obtain an operation to close the lead door 310, A request for a special operation for shifting the display screen. This notification, the instruction, and the request are preferably made by one or both of voice or display on the display panel 118 (Fig. 1). The control unit 110 instructs the operation to close the lead door 310, for example, within a predetermined time, as an instruction to obtain the operation to close the lead door 310. [ In step S130, the control unit 110 prohibits the movement of the vehicle 10 once. For example, the control unit 110 may perform a predetermined movement prohibition process such as not operating the drive motor 150, or locking the gear. The order of steps S120 and S130 may be reversed.

The control unit 110 shifts the process to step S150 and determines whether or not the history of the special operation input requested in step S120 is registered. Here, the " special operation " means an operation that is performed by the driver such as a shift operation, an accelerator pedal operation, a brake pedal operation, a key operation, or the like and is not assumed to be performed during normal startup, Input "means that the special operation is performed with respect to the vehicle 10. As an example of the special operation, the brake pedal is pumped a plurality of times (for example, five times or more) to turn on and off the starter switch 115 several times, the shift operation is performed while the emergency light is turned on, And pressing the starter switch 115 while the starter switch 115 is being operated. The history of the special operation input is registered in the control unit 110 as described later. If the history of the special operation input is not registered within the predetermined time in step S150, the control unit 110 ends the processing and maintains the prohibition of the movement of the vehicle 10. [ If the history of the special operation input is registered, the process proceeds to step S160. In step S160, it is determined whether an abnormality of an open fixation occurs in the signal LS1 of the first lead sensor 330 or an open fixation It is determined that an abnormality has occurred, and only one trip of the vehicle 10 is inhibited from being moved, thereby permitting the movement. Here, the " movement permission of the vehicle 10 " means that when the driver depresses the accelerator pedal, the drive motor 150 drives the wheel 180 accordingly. The power source at this time may be either the fuel cell 100 or the secondary battery 130. The "one trip" means a single operation until the starter switch 115 is depressed and the starter switch 115 is depressed again after being in the ready-on state or the movement prohibited state.

If the signal LS2 of the second lead sensor 340 indicates " Closed " in step S115, the control unit 110 proceeds to step S170 and permits the vehicle 10 to move. When the display panel 118 of the vehicle 10 has a configuration in which the display indicating " open " is turned on when the lead door 310 is opened, a process of deleting the display (step S125) is executed Maybe. If the abnormality determination of the two lead sensors 330 and 340 is registered in the control unit 110, the registration may be deleted.

5 is a flowchart showing the registration and release of the input history of the special operation. This flow chart is a process started by turning on the starter switch 115 and repeatedly executed as interrupt processing at a predetermined cycle. The process of Fig. 5 is executed at least once between the request for the special operation in step S120 in Fig. 4 and the determination of the presence or absence of the history of the special operation input in step S150. When a special operation is input, a flag (special operation input flag) is set to ON in the control unit 110. [ In step S180, the control unit 110 determines whether or not a special operation has been performed depending on whether the special operation input flag is ON. When determining that the special operation input has been made, the control unit 110 sets the history of the special operation input to "YES" and sets the special operation input flag to OFF in step S182. For example, when the special operation input flag is not turned off, in the second and subsequent cycles, the determination in step S180 is "YES", and even if the special operation is not inputted, the history of the special operation input is "YES" A problem may arise that it is set. To avoid this, the control unit 110 preferably turns off the special operation input flag in step S182.

If it is determined in step S180 that the special operation input flag is OFF, the control unit 110 determines whether all the signals LS1 and LS2 of the two read sensors 330 and 340 indicate " closed " do. The control unit 110 determines in step S188 that there is no abnormality in the open fixation in the two lead sensors 330 and 340. If the two signals LS1 and LS2 indicate & Set the history of the input to "None". When it can be determined that there is no abnormality in the opening and fixing of the two lead sensors 330 and 340, the control unit 110 can cancel the registration by setting the history of the special operation input to " none ".

 If at least one of the two signals LS1 and LS2 indicates " open " in step S184, it is determined in step S186 whether or not it is in the ready-on state. The ready-on state means a state in which the vehicle 10 can move freely or is permitted, as described above. For example, when the movement is allowed in step S160 in Fig. 4, the control unit 110 sets the control unit 110 to the ready-on state. In the case of the ready-on state in step S186, the control unit 110 proceeds to step S190 and fixes the history of the special operation input to "none". This fixed state can not be changed until the repair of the lead box 300 is completed. That is, once the history of the special operation is fixed to "none" in step S190, even if it is detected in step S180 that the special operation input flag is on, the history of the special operation input can not be set to " do. As a result, it is possible to prevent the movement prohibition from being canceled by inputting the special operation by one, and to prevent the prohibition from being canceled excessively. The number of times of prohibiting cancellation of such prohibition is not limited to one but may be plural. If it is not in the ready-on state in step S186, the flow ends.

As described above, according to the present embodiment, when at least one of the two signals LS1 and LS2 of the two lead sensors 330 and 340 indicates " open ", the control unit 110, If it is determined in step S150 that a special operation has been performed, it is determined that there is an abnormality in the lead sensors 330 and 340, the prohibition of movement of the vehicle 10 is canceled, You can authorize.

In this embodiment, when a special operation is performed (step S150), the movement prohibition of the vehicle 10 is canceled and the movement is permitted. However, the special operation is not performed, It may be determined that there is an abnormality in the vehicles 330 and 340 and the movement prohibition of the vehicle 10 is canceled and the movement is permitted. For example, when it is detected that the lead door 310 is open but closed at a predetermined angle or less, the control unit 110 determines that there is an abnormality in the lead sensors 330 and 340, Permission to move is acceptable. For example, when the signal LS1 of the first lead sensor 330 indicates "closed" and the signal LS2 of the second lead sensor 340 indicates "open", any one of the lead sensors 330, 340 . That is, when the signal LS1 indicates "closed", the opening degree of the lead door 310 is equal to or smaller than LO1. On the other hand, when the signal LS2 indicates " open ", it is considered that any one of the lead sensors 330 and 340 is abnormal because the opening degree of the lead door 310 is LO2o (LO2o> LO1). The determination as to whether or not the signal LS1 is " closed " is described in the third embodiment which will be described later. Here, when it is judged that there is no abnormality in the signal LS1, it is judged that the signal LS2 is fixed in a state indicating "open". In this case, the lead door 310 is considered to be closed by a sufficiently small predetermined angle (LO1 or less) close to the closed state. In this way, when it is detected that the lead door 310 is closed at a predetermined angle or less, the control unit 110 controls the movement of the vehicle 10 regardless of whether or not the lead sensors 330 and 340 are abnormal May be released (permitted). This determination may be made using a lead sensor of a type that detects an angle instead of using two lead sensors 330 and 340. [ Further, either of the two lead sensors 330 and 340 may be a lead sensor of a type that detects an angle.

Second embodiment:

6 is a flowchart showing the operation until the starter switch 115 of the vehicle 10 is turned on and the starter switch 115 is turned off in the second embodiment. The configuration of the vehicle 10 of the second embodiment has the same configuration as that of the first embodiment shown in Figs. In the second embodiment, when any of the signals LS1, LS2 of the two lead sensors 330, 340 is not "closed", the starter switch 115 is turned on and off under a predetermined condition The movement prohibition is canceled and the vehicle 10 is allowed to move in the ready-on state.

In step S300, when the control unit 110 detects that the starter switch 115 is pressed (turned on) in a state where the brake pedal is depressed, the control unit 110 proceeds to step S305. If the starter switch 115 can not detect that the starter switch 115 is pressed, the control unit 110 ends the process. When the starter switch 115 is depressed in a state where the brake pedal is not depressed, it transitions to the accessory state, the ignition on state, and the off state in order as described above. When the starter switch 115 is depressed because the brake pedal is depressed in the accessory state or the ignition ON state, the process proceeds to step S305.

In step S305, the control unit 110 determines whether or not both signals LS1 and LS2 indicate " closed ". When all of the two signals LS1 and LS2 indicate " closed ", the control unit 110 proceeds to step S350 described later. When at least one of the two signals LS1 and LS2 indicates " The movement of the vehicle 10 is prohibited at S310.

Subsequently, in step S315, the control unit 110 determines whether or not the number M of executions of the special operation processing loop is equal to or greater than the number threshold value Ms (Ms is a predetermined integer equal to or greater than 1). The "special operation processing loop" is a series of processing loops from the step S300 (the start of the starter switch 115) to the step S345 (the starter switch 115 is off) which will be described later. When the processing loop is executed from step S300 to step S345, The special operation processing loop is executed once. If the number M of executions of the special operation processing loop is equal to or greater than Ms, the control unit 110 proceeds to step S355 described later. When the number M of special operation processing loops is less than Ms, the processing proceeds to step S320.

In step S320, the control unit 110 blinks the character " Ready " on the display panel 118 (Fig. 1) and displays a message " close the lead door ". The presentation by the blinking of the characters of " Ready " indicates that it is in transition to the ready-on state (before transition). Thereafter, when the state can be shifted to the ready-on state, the character " Ready " is always lit, and when the state can not be shifted to the ready-on state, it is turned off and not shown. The presentation of " Ready " does not necessarily have to be " Ready ", but may be a specific lamp such as a green lamp or a specific display using a part of the display panel 118. Further, the characters of " Ready " are also presented by using, for example, a lamp or a display panel 118, and thus are included in a specific display. This particular indication is referred to as " ready indication ". The indication " close the lead door " corresponds to " indication that the lead door is open ". The control unit 110 may notify or guide by voice instead of displaying " close the lead door ". Further, the control unit 110 may warn by " the lead door is opened " and by display or voice on the display panel 118. [ The control unit 110 may indicate which of these display timings may be displayed ahead of time, or may be displayed simultaneously. The blink period of the ready display is preferably about 0.5 second to 2 seconds. However, when the blinking cycle depends on, for example, the voltage of a battery (not shown), even the same vehicle can not always be the same cycle. Therefore, it is not necessary to strictly define the blink period. In the first embodiment, the control unit 110 notifies or instructs a request for a special operation for canceling the movement prohibition of the fuel cell vehicle 10, but in the second embodiment, the control unit 110 performs a special operation It is not necessary to give a notice or instruction to the user. Further, the control unit 110 may perform at least one of a notification of "close the lead door", a notification or warning "the lead door is open" and a request for special operation.

In step S330, the control unit 110 determines whether flashing of the ready display is performed N times. Here, the value of N is preferably 3 to 5. As described later, in the present embodiment, the control unit 110 performs a special operation when at least one of the two signals LS1 and LS2 is not " closed " At this time, the control unit 110 requests the special operation processing loop from step S300 to step S345 to be executed as a special operation to execute Ms times (Ms is a predetermined integer equal to or larger than 1). The special operation processing loop for each conference includes flickering of N ready readings. Therefore, if the number of times of N is large, it takes time until the ready-on state is established. Therefore, the value of N is preferably 10 or less, more preferably 3 to 5 times. When the flashing of the ready display is performed N times, the control unit 110 advances the processing to step S335. If the flashing of the ready display is less than N times, the control unit 110 returns to step S320. Further, the control unit 110 may determine not the number of times of flashing of the ready display, but the continuation time of the flashing of the ready display. In this case, a value of about 5 to 10 seconds may be used as the determination value of the blinking continuation time.

In step S335, the control unit 110 changes the ready display from blinking to non-presentation. Therefore, the driver of the vehicle 10 recognizes that the vehicle 10 is not in the ready-on state by showing that the ready display is turned off, and it is possible to consider the transition to the ready-on state by the special operation . It is not necessary to perform step S320 (blinking of ready display) and step S335 (changing from blinking display of ready display to disappearance). However, it is preferable that the flashing of the ready display is performed because the driver's attention can be further exerted.

In step S340, the control unit 110 increases the value of the number M of special operation processing loops by one. The process of increasing M by one in step S340 may be performed anywhere after step S300 and before step S345. In step S345, it waits for the starter switch 115 to be pressed again and turned off. Here, when the starter switch 115 is not pressed, the vehicle 10 waits for the movement inhibition state. When the starter switch 115 is depressed, the flow ends.

If all of the two signals LS1 and LS2 indicate " Closed " in step S305, the process proceeds to step S350. In step S350, the control unit 110 sets the state of the vehicle 10 to the ready- ). When the vehicle 10 is in the ready-on state, the ready display is always turned on, for example. In step S350, the control unit 110 resets the number M of special operation processing loops to zero. This is because, when there is an abnormality in at least one of the two signals LS1 and LS2 when the starter switch 115 is next depressed, the special operation processing loop is not set in the ready-on state unless it is executed for Ms times to be. When the control unit 110 sets the vehicle 10 in the ready-on state, the process proceeds to step S345. Further, in step S345, the vehicle 10 is movable until the starter switch 115 is turned off.

If the special operation processing loop has been executed for Ms times, the control unit 110 moves from step S315 to step S355, and similarly to step S350, the control unit 110 releases the movement prohibition of the vehicle 10, The number M of special operation processing loops is reset to zero. In this way, even when at least one of the two signals LS1 and LS2 indicates " open ", when the starter switch 115 is turned on after the special operation processing loop is repeated Ms times, It is determined that the special operation has been executed and the vehicle 10 is in the ready-on state when the number M of special operation processing loops for setting the state of the vehicle 10 to the ready-on state is equal to or greater than the threshold value Ms. If the control unit 110 resets the number M of special operation processing loops to zero or if at least one of the two signals LS1 and LS2 indicates " open ", the special operation processing loop is executed again Ms times, Is not pressed, the vehicle 10 can not be brought into the ready-on state. As described above, by resetting the number M of special operation processing loops to 0, it is possible to make the vehicle 10 in the ready-on state only once every Ms times. When the control unit 110 sets the vehicle 10 in the ready-on state, the process proceeds to step S345. Even in this case, in step S345, the vehicle 10 is movable until the starter switch 115 is turned off.

As described above, according to the second embodiment, even if at least one of the two signals LS1 and LS2 indicates " open ", the special operation processing loop process is performed Ms times (Ms is a predetermined constant of 1 or more) The control unit 110 allows the vehicle 10 to be in the ready-on state and enables the vehicle 10 to move when a special operation in which the driver 115 is pressed is performed.

Since the special operation processing loop includes a process in which the driver presses the starter switch 115, a process in which the control unit 110 performs predetermined notification, and a process in which the driver again presses the starter switch 115, By performing a special operation that is difficult to be performed in the case of driving, it is possible to cancel the movement prohibition of the vehicle. At this time, as the process for notifying, it is determined that it includes at least one of that the lead door 310 is opened, that the lead door 310 is closed, and that the driver is notified that special operation is necessary , The driver's attention can be urged. Further, if the process includes a process of presenting the ready display by blinking for a predetermined number of times or a predetermined time, and a process of changing the ready display from blinking to non-presentation, the driver (user) Then, by letting the ready display be non-present, it is possible to betray the expectation of the driving permission, and the driver's attention to the indication "please close the lead door" can be raised.

In the present embodiment, the processing count threshold Ms of the special manipulation processing loop is set to 1 or more. However, if the threshold value Ms is excessively small, the ready-on by the special operation is easily carried out easily. If the threshold value Ms is too large, it takes time until ready-on by the special operation. Therefore, the threshold number of times Ms of the special manipulation processing loop is preferably 3 to 7, and more preferably 5.

The special operation shown in Fig. 6 is an example, and if the starter button 115 is not depressed even when the starter button 115 is depressed, special operations other than the special operation may be performed. For example, the operation of moving the shift lever from the parking position to the drive position, then returning to the parking position, and then pressing the starter switch 115 may be a special operation. At this time, it may be further demanded to step on the accelerator pedal before moving the shift lever. The operation of pumping the brake pedal a plurality of times (for example, five times or more) and depressing the brake pedal to depress the starter switch 115 may be a special operation, or the emergency light may be turned on and then the brake pedal may be depressed The operation of pressing the starter switch 115 may be a special operation. Further, in the case where the above-described two or more kinds of operations are executed in combination, it is determined that the special operation has been executed, and the prohibition of the movement of the vehicle 10 may be canceled. The operation may be predetermined.

As special operation processing loops, when the signals LS1 and LS2 of the lead sensors 330 and 340 indicate that the lead door 310 is opened after the starter switch 115 is pushed, And that the starter switch 115 is pressed (turned off) after the notification process. As the " notifying process ", it is possible to use a warning sound or a voice notification other than to display the indication " close the lead door " on the display panel 118 as described above.

In the second embodiment, the number of times that can be put into the ready-on state is not limited except that "one time by Ms conferencing is permitted". However, similar to the first embodiment, The limit may be set to the number of times the state can be set.

Third Embodiment:

When the signals LS1 and LS2 of the lead sensors 330 and 340 are equal to or more than the closed fixation indicating " Closed ", the nozzles 520 of the hydrogen station 50 are connected to the fuel There is a fear that the vehicle 10 is moved in a state of being connected to the receptacle 215 of the battery vehicle 10. [ In the third embodiment, detection of such closure fixation or abnormalities will be described.

Fig. 7 is an explanatory view showing the principle of determination of the closure fixing abnormality of the signals LS1 and LS2 of the lead sensors 330 and 340. Fig. It is possible to connect the nozzle 520 of the hydrogen station 50 to the receptacle 215 of the vehicle 10 and charge the hydrogen when the lead door 310 is physically opened in the vehicle 10. [ Therefore, when the pressure sensor 260 of the vehicle 10 is monitored while the hydrogen is being charged and the signal LS1 of the first lead sensor 330 or the signal LS2 of the first lead sensor 330 is increased or decreased when the value of the pressure sensor 260 rises above the predetermined threshold value, If the signal LS2 of the second lead sensor 340 is a signal indicating " Closed ", it can be determined that the lead sensor is closed and fixed. The filling of the hydrogen is started after the lead open button 325 is depressed, the lead door 310 is opened, and the nozzle 520 is connected to the receptacle 215. For example, charging starts from time t0 in Fig. At time t1, it is assumed that the value of the pressure sensor 260 has risen by? P equal to or higher than a predetermined threshold value at the time of starting charging. At time t1, if the signal LS1 of the first lead sensor 330 or the signal LS2 of the second lead sensor 340 is a signal indicating " Closed ", it can be determined that the lead sensor is closed and fixed. In the example shown in Fig. 7, the control unit 110 can determine that the first lead sensor 330 is closed and fixed. Further, the threshold value is set to a value sufficiently small to detect that the hydrogen is charged.

8 is a flowchart of the determination of the closure fixing abnormality. In step S200, the control unit 110 determines whether the output value of the pressure sensor 260 indicates a value within a predetermined normal range. When the output value of the pressure sensor 260 is within the predetermined normal range, the control unit 110 advances the processing to step S210. In the present embodiment, a change in pressure is used to determine whether or not the lead sensors 330 and 340 have been closed and fixed, so that determination can not be made if the pressure does not show a value within a normal range. In this case, the control unit 110 advances from step S200 to step S270 to determine whether or not the lead sensors 330 and 340 are closed and fixed, and even if hydrogen is charged, the pressure increase value? do. In step S210, the control unit 110 determines whether the signal LS1 of the first lead sensor 330 indicates " Closed ". If the signal LS1 indicates " closed ", the control unit 110 shifts the processing to step S220. On the other hand, when the signal LS1 of the first lead sensor 330 indicates "open", since the first lead sensor 330 can not be closed and fixed, the control unit 110 proceeds to the above-described step S270 , And the pressure increase value? P at the time of hydrogen charging is cleared.

In step S220, the control section 110 instructs the display on the voice or display panel 118 to press the lead open button 325. [ In step S230, the control unit 110 determines whether the lead door 310 is opened or closed. Specifically, it is detected that (1) the lead open button 325 is pressed, or (2) the signal LS2 of the second lead sensor 340 changes from "closed" to "open". The control unit 110 may determine either one of (1) and (2) to be a faster one.

In step S240, an output value (pressure value) of the pressure sensor 260 that rises as hydrogen is charged is obtained. In step S250, the control unit 110 determines whether or not the output value of the pressure sensor 260 has risen by? P more than the start of charging. If the output value of the pressure sensor 260 is higher than the start of charging by? P or more, the control unit 110 proceeds to step S260 and determines that the first lead sensor 330 is closed and fixed. That is, when the signal LS1 of the first lead sensor 330 is " closed " in a state in which the lead door 310 is opened and hydrogen can be charged, the control unit 110 controls the first lead sensor 330 ) May cause the closure adhesion abnormality. Further, the second lead sensor 340 can also be judged as a closure fixing abnormality by the same method.

As described above, according to the third embodiment, it is possible to determine whether or not the two lead sensors 330 and 340 are closed and fixed. When both of the two lead sensors 330 and 340 are at least closed, the movement of the vehicle 10 may be prohibited. In this case, as described in the first embodiment or the second embodiment, the prohibition of movement of the vehicle 10 may be canceled in accordance with the execution of the special operation.

Modified Example 1:

In the first embodiment, when the special operation is inputted, the control unit 110 determines whether or not to cancel the movement prohibition according to whether or not there is the history after registering the history of the special operation. However, The movement prohibition may be canceled in accordance with the input of the special operation without registering the input.

Modified Example 2:

In the above embodiment, the case where the two lead sensors 330 and 340 are used has been described as an example, but the number of the lead sensors may be one or three or more.

The embodiments of the present invention have been described above based on several embodiments. However, the embodiments of the present invention are for facilitating understanding of the present invention, and are not intended to limit the present invention. It goes without saying that the present invention includes modifications and improvements obtained without departing from the spirit and the scope of the claims, and equivalents of the present invention.

10: Fuel cell vehicle (vehicle)
50: hydrogen station
100: Fuel cell
110:
115: Starter switch
118: Display panel
120: required output detection unit
130: secondary battery
140: Power distribution controller
150: drive motor
160: drive shaft
170: Power distribution gear
180: wheel
200: Fuel tank
210: fuel gas charging tube
215: Receptacle
218: Backflow prevention valve
220: Check valve
240: fuel gas supply pipe
245: Stop valve
250: regulator
260: Pressure sensor
300: lead box
310: Lead door
315: Hinge
320: Lead opener
325: Lead release button
330: first lead sensor
340: second lead sensor
350: Infrared transceiver
500: gas tank
505: Gas pipe
510: Gas supply hose
520: Nozzle
530: Valve
550: Infrared transceiver

Claims (10)

A control method of a vehicle equipped with a fuel cell,
(a) when the signal from the lead sensor for detecting the opening and closing of the lead door of the gas filling port of the vehicle indicates that the lead door is opened, a process for prohibiting the movement of the vehicle is performed,
(b) when it is determined that there is an abnormality in the lead sensor or when a predetermined special operation is performed, even if the signal of the lead sensor indicates that the lead door is opened, Is performed. The method according to claim 1,
The special operation is an operation in which the driver of the vehicle presses the starter switch of the vehicle after the predetermined special operation processing loop is executed a predetermined number of times,
In the special operation processing loop,
A process of the driver pressing the starter switch,
A process of performing a predetermined notification,
And the driver again pressing the starter switch. 3. The method of claim 2,
Wherein the process of performing the notification includes at least one of that the lead door is opened, an instruction is made to close the lead door, and the driver is notified that the special operation is necessary. The method according to claim 2 or 3,
The processing for performing the notification includes:
A process of presenting a specific indication by blinking a predetermined number of times or a predetermined time,
And changing the specific indication from blinking to non-presentation. The method according to claim 1,
And a process of canceling the prohibition of movement of the vehicle is performed when it is detected from the signal of the lead sensor that the lead door is closed at a predetermined angle or less. A vehicle equipped with a fuel cell,
A gas filling port for supplying a fuel gas to the vehicle,
A lead box for protecting the gas filling port,
A lead door which is a lid of the lead box,
A lead sensor for detecting opening and closing of the lead door,
A control unit for controlling the movement of the vehicle;
A starter switch for switching start and stop of the vehicle
And,
Wherein the control unit, after the starter switch is turned on,
(a) when the signal of the lead sensor indicates that the lead door is opened, a process for prohibiting the movement of the vehicle is performed,
(b) when it is determined that there is an abnormality in the lead sensor or when a predetermined special operation is performed, even if the signal of the lead sensor indicates that the lead door is opened, ,
vehicle. The method according to claim 6,
The special operation is an operation in which the driver of the vehicle presses the starter switch of the vehicle after the predetermined special operation processing loop is executed a predetermined number of times,
In the special operation processing loop,
A process of the driver pressing the starter switch,
A process of performing a predetermined notification,
And the driver again pressing the starter switch. 8. The method of claim 7,
Wherein the process of performing the notification includes at least one of that the lead door is opened, that the lead door is closed, and that the driver is notified that the special operation is necessary. 9. The method according to claim 7 or 8,
The processing for performing the notification includes:
A process of presenting a specific indication by blinking a predetermined number of times or a predetermined time,
And changing the specific indication from blinking to non-blinking. The method according to claim 6,
Wherein the control section performs a process of canceling the prohibition of movement of the vehicle from the signal of the lead sensor when it is detected that the lead door is closed at a predetermined angle or less.

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