Vehicle control device

Abstract

To provide a vehicle control device that can perform control to quickly bring the battery temperature close to a specified range while satisfying NV performance.SOLUTION: A vehicle control device includes: a passenger detection unit that detects passengers entering a vehicle; a cooling control unit that cools the battery on the basis of a first cooling standard that cools the battery on the basis of a first standard and a second cooling standard that cools the battery on the basis of a second standard having higher cooling performance than the first standard; and a control unit that controls the cooling control unit such that the second cooling standard is met when the temperature of the battery is equal to or higher than a predetermined threshold value until the passengers enter the vehicle.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle control device. [Background technology]

[0002] Conventionally, when an activation signal is transmitted from a smart key, the vehicle interior temperature is compared with the battery temperature, and temperature adjustment is performed to make the interior environment closer to a comfortable state before the driver gets in. It has also been proposed to control the temperature adjustment mechanism so that the battery temperature is within a target temperature range when it is detected that the driver is approaching the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-103708 A [Patent Document 2] JP 2012-080630 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, it is necessary to adjust the battery temperature to approach a predetermined range while satisfying NV (Noise, Vibration) performance, which is the magnitude of noise and vibration that passengers do not find unpleasant. Therefore, it has been difficult to adjust the battery temperature early. Furthermore, there is a concern that the battery may deteriorate if the vehicle is continued to run with the battery temperature outside the predetermined range.

[0005] An object of the present invention is to provide a vehicle control device that can perform control to quickly bring the battery temperature close to a predetermined range while satisfying NV performance. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the vehicle control device of the present invention includes an entry detection unit that detects entry, a cooling unit that cools the battery based on a first cooling standard and a second cooling standard that cools the battery based on a second standard having higher cooling performance than the first standard, and a control unit that controls the cooling unit to achieve the second cooling standard when the battery temperature is above a predetermined threshold value until entry is detected.

[0007] According to this configuration, cooling can be performed with the second cooling standard, which has a higher cooling performance than the first cooling standard, until the vehicle is detected as being in the vehicle. This allows the battery temperature to approach the predetermined range early. In addition, since the vehicle is not yet in the vehicle, the NV performance can also be satisfied.

[0008] The vehicle further includes an air conditioning unit that adjusts the temperature inside the vehicle cabin, and even when the control unit detects entry, if the air volume of the air conditioning unit is equal to or greater than a predetermined value, the control unit controls the cooling control unit so that a third cooling standard is achieved, which is a third standard that has higher cooling performance than the first standard and is equal to or less than the second standard.

[0009] According to this configuration, when the vibration or noise caused by the air conditioner's airflow exceeds the first standard, the third cooling standard is set. This allows the battery to be cooled early due to the third cooling standard while still satisfying the NV performance even after getting in the vehicle.

[0010] The vehicle also includes a boarding detection unit that detects boarding, a temperature rise control unit that heats up the battery based on a first temperature rise standard that heats up the battery based on a first standard and a second temperature rise standard that heats up the battery based on a second standard that has higher temperature rise performance than the first standard, and a control unit that controls the temperature rise control unit so that the second temperature rise standard is met when the temperature of the battery is below a predetermined threshold value until the boarding is detected.

[0011] According to this configuration, until the vehicle is detected as being in the vehicle, the temperature can be increased according to the second standard, which has a higher temperature increase performance than the first standard. This allows the battery temperature to approach a predetermined range quickly depending on the presence or absence of an occupant. This makes it possible to suppress battery deterioration and a decrease in discharge capacity.

[0012] The vehicle further includes an air conditioning unit that adjusts the temperature inside the vehicle cabin, and even when the control unit detects entry, if the air volume of the air conditioning unit is equal to or greater than a predetermined value, the control unit controls the heating control unit so that the heating performance is higher than the first standard and the third cooling standard is set based on a third standard that is equal to or lower than the second standard.

[0013] According to this configuration, when the vibration or noise caused by the air conditioner's airflow exceeds the first standard, the third temperature rise standard is set. This allows the battery to be heated quickly due to the third temperature rise standard while still satisfying the NV performance even after getting in the vehicle. Effect of the Invention

[0014] According to the present invention, cooling can be performed with the second cooling standard, which has a higher cooling performance than the first cooling standard, until the vehicle is detected as being in the vehicle. This allows the battery temperature to approach a predetermined range quickly. In addition, the NV performance can be satisfied because the vehicle is not detected as being in the vehicle yet. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a block diagram showing an example of the configuration of a vehicle to which a vehicle control device according to an embodiment of the present invention is applied. [Diagram 2] FIG. 2 is a timing chart for explaining an example of control processing of the cooling control unit in the control device for a vehicle according to one embodiment of the present invention. [Diagram 3] FIG. 3 is a timing chart for explaining an example of the control process of the temperature rise control unit in the control device for a vehicle according to one embodiment of the present invention. [Figure 4]FIG. 4 is a flowchart for explaining an example of a control process in the control device for a vehicle according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The present invention is a control device for a vehicle 1 in which, when the temperature of the battery 14 is equal to or higher than a predetermined threshold, the cooling control unit 26 cools the battery 14 based on a second standard having a higher cooling performance than the first standard until it is detected that a passenger has entered the vehicle. Also, when the temperature of the battery 14 is equal to or lower than the predetermined threshold, the control device for a vehicle 1 in which the heating unit heats the battery 14 based on the second standard having a higher heating performance than the first standard until it is detected that a passenger has entered the vehicle.

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0018] <Vehicle 1> Fig. 1 is a block diagram showing a configuration of a vehicle 1 to which a control device for a vehicle 1 according to an embodiment is applied. As shown in Fig. 1, the vehicle 1 is, for example, a hybrid vehicle equipped with a series type hybrid system 10.

[0019] The vehicle 1 is equipped with a series hybrid system 10. The hybrid system 10 includes an engine 11, a generator motor (MG1) 12, a drive motor (MG2) 13, a battery 14, and a PCU (Power Control Unit) 15.

[0020] The engine 11 is, for example, a gasoline engine. The engine 11 includes a throttle body, a fuel injector that injects fuel into intake air, etc. The throttle body is a component that takes in fuel and air and sends them to the fuel chamber of the engine 11, and includes an electronic throttle valve that adjusts the amount of intake air into the combustion chamber of the engine 11, a throttle position sensor that detects the opening of the electronic throttle valve, a control valve that adjusts the amount of intake air when idling, such as when the vehicle is stopped, etc.

[0021] The generator motor 12 is, for example, a permanent magnet synchronous motor. The rotating shaft of the generator motor 12 is mechanically connected to the crankshaft of the engine 11 via a gear (not shown). For example, an engine output gear is supported on the crankshaft of the engine 11 so as not to rotate relative thereto, and a motor gear is supported on the rotating shaft of the generator motor 12 so as not to rotate relative thereto, and the engine output gear and the motor gear are meshed with each other.

[0022] The drive motor 13 is, for example, a permanent magnet synchronous motor larger than the generator motor 12. A rotating shaft of the drive motor 13 is connected to a drive system 16 of the vehicle 1. The drive system 16 includes a differential gear, and the power of the drive motor 13 is transmitted to the differential gear, and distributed and transmitted from the differential gear to drive wheels 17 consisting of left and right front wheels or rear wheels. This causes the left and right drive wheels 17 to rotate, and the vehicle 1 moves forward or backward.

[0023] The battery 14 is an assembled battery made up of a combination of a plurality of secondary batteries. The secondary batteries are, for example, lithium ion batteries. The battery 14 outputs DC power of, for example, about 200 to 350 V (volts). The battery 14 is provided above the floor panel inside the vehicle compartment.

[0024] The PCU 15 is a unit for controlling the driving of the generator motor 12 and the drive motor 13, and includes an inverter and a converter (not shown).

[0025] When starting the engine 11, the DC power output from the battery 14 is boosted by a converter (not shown), the boosted DC power is converted to AC power by an inverter (not shown), and the AC power is supplied to the generator motor 12. This causes the generator motor 12 to perform power running, and the engine 11 is motored (cranked) by the generator motor 12. When the rotation speed of the crankshaft of the engine 11 has increased to a rotation speed required for starting due to motoring, the ignition plug of the engine 11 is sparked, and the engine 11 starts.

[0026] When the vehicle 1 is traveling, the drive motor 13 is operated in a power running mode, and the drive motor 13 generates power.

[0027] When the output required for the drive motor 13 is smaller than the output of the battery 14, the vehicle 1 runs in EV mode. That is, the engine 11 is stopped, power generation by the generator motor 12 is not performed, and power is supplied from the battery 14 to the drive motor 13, which is then used to drive the drive motor 13.

[0028] Furthermore, when the remaining capacity of the battery 14 falls below a predetermined level, the generator motor 12 operates to generate electricity while the engine 11 is running, regardless of whether the drive motor 13 is running or stopped. At this time, AC power from the generator motor 12 is converted to DC power by the inverter, and the DC power output from the inverter is stepped down by the converter, and the stepped-down DC power is supplied to the battery 14, thereby charging the battery 14.

[0029] When the vehicle 1 decelerates, the drive motor 13 is operated in a regenerative manner, and the power transmitted from the drive wheels 17 to the drive motor 13 is converted into AC power. At this time, the drive motor 13 becomes a resistor in the drive system 16, and this resistance acts as a braking force (regenerative braking force) that brakes the vehicle 1. At this time, in the PCU 15, the AC power supplied from the drive motor 13 to the inverter is converted into DC power by the inverter, and the DC power output from the inverter is stepped down by the converter. The stepped-down DC power is then supplied to the battery 14, thereby charging the battery 14.

[0030] Vehicle 1 is equipped with each ECU (Electronic Control Unit). Each ECU has a microcontroller unit (microcomputer), and the microcomputer has built-in, for example, a CPU, a non-volatile memory such as a flash (registered trademark) memory, and a volatile memory such as a dynamic random access memory (DRAM). Each ECU is connected to enable two-way communication by a controller area network (CAN) communication protocol. Various sensors required for control are connected to the ECU, and detection signals of the connected sensors are input.

[0031] 1 shows a hybrid system 10, a BMS (Battery Management System) 30 that controls the temperature of a battery 14, each ECU, various sensors, etc. The BMS 30 and the ECU are examples of a control device of the vehicle 1 in this disclosure.

[0032] The BMS 30 includes a control unit 32 and a cooling control unit 26. A battery cooling unit 40 and a battery sensor unit 24 are connected to the BMS 30. The battery sensor unit 24 includes a temperature sensor 241, a current sensor 242, and a voltage sensor 243.

[0033] Examples of the ECUs include an HEV (Hybrid Electric Vehicle)-ECU 200, an AAC (Auto Air Conditioner)-ECU 220, and a BDY (Body Integrated)-ECU 210. The HEV-ECU 200 includes an activation receiving unit 31 and a temperature rise control unit 25. The AAC-ECU 220 includes an air conditioning unit 22. The BDY-ECU 210 includes a ride detection unit 21. An electronic key 20 and a vehicle speed sensor 23 are connected to the HEV-ECU 200.

[0034] When the vehicle 1 is remotely started by a remote start or the like, the electronic key 20 sends an activation signal to the activation receiving unit 31. The electronic key 20 may be any terminal capable of transmitting an activation signal to the vehicle 1.

[0035] The activation receiver 31 receives an activation signal for the vehicle 1 from the electronic key 20 or the like, for example, when the user remotely activates the vehicle 1 using a remote start or the like. Alternatively, the activation receiver 31 receives the activation signal when the electronic key 20 that sends the activation signal is located within a predetermined range of the vehicle 1.

[0036] The temperature sensor 241 detects the temperature of the battery 14 and outputs the detection result to the control unit 32. Furthermore, the temperature sensor 241 detects whether the temperature of the battery 14 is equal to or higher than a predetermined threshold value or equal to or lower than a predetermined value. The temperature sensor 241 is attached to the battery 14.

[0037] The entry detection unit 21 detects whether a user has entered the vehicle, and outputs the detection result to the control unit 32. The entry detection unit 21 detects entry when the door of the vehicle 1 is opened. Alternatively, the entry detection unit 21 detects entry when the electronic key 20 is within a predetermined range of the vehicle 1.

[0038] The cooling control unit 26 performs control by at least one of air cooling and water cooling based on a control signal from the control unit 32. The cooling control unit 26 is connected to the battery cooling unit 40 and controls the battery cooling unit 40.

[0039] For example, in the case of air cooling, the battery cooling unit 40 has a cooling fan. The cooling control unit 26 drives the cooling fan to cool the battery 14. The cooling control unit 26 cools the battery 14 by introducing cooling air from the cooling fan into the battery case.

[0040] For example, in the case of water cooling, the battery cooling unit 40 has a water pump. The cooling control unit 26 cools the battery 14 by circulating the cooling water by the water pump. The cooling control unit 26 cools the battery 14 by circulating the cooling water through a cooling flow path provided in the battery 14 case.

[0041] The cooling control unit 26 performs cooling based on a first cooling standard where the battery 14 is cooled by the battery cooling unit 40 based on a first standard, and a second cooling standard where the battery cooling unit 40 cools the battery 14 based on a second standard having a higher cooling performance than the first standard. The second cooling standard is a standard that includes at least one of increasing the rotation speed of the cooling fan of the battery cooling unit 40 above the first cooling standard, or increasing the flow rate of the water pump above the first cooling standard.

[0042] The second cooling standard is a standard that does not require a guarantee of NV performance. NV performance is a predetermined level of vibration and noise that is unlikely to cause discomfort to passengers. Examples of vibration and noise related to NV performance include the rotation noise of a cooling fan or the driving noise of a water pump.

[0043] The temperature rise control unit 25 performs control based on at least one of internal heat generation and external heat generation of the battery 14, based on a control signal from the control unit 32. For example, in the case of internal heat generation, the temperature rise control unit 25 raises the temperature of the battery 14 by shortening the cycle of repeating charging and discharging the battery 14 and by increasing the current value during discharging.

[0044] The current sensor 242 and the voltage sensor 243 detect a current value and a voltage value, and output the detection results to the control unit 32. In this way, the charging and discharging of the battery 14 are controlled.

[0045] For example, in the case of external heat generation, the temperature increase control unit 25 increases the temperature of the battery 14 by providing a heater on the outer periphery of the battery 14 or the case of the battery 14 and causing the heater to generate heat.

[0046] The temperature rise control unit 25 raises the temperature of the battery 14 based on a first temperature rise standard, which raises the temperature of the battery 14 based on a first standard, and a second temperature rise standard, which raises the temperature of the battery 14 based on a second standard having a higher temperature rise performance than the first standard. The second temperature rise standard makes the charge and discharge cycle of the battery 14 shorter than the first temperature rise standard, and raises the current value during discharge of the battery 14 higher than the first temperature rise standard.

[0047] The second temperature rise standard is a standard that does not require guaranteeing the NV performance. For example, vibrations and noises related to the NV performance are generated by repeatedly charging and discharging the battery 14, i.e., by switching the rotation of the engine 11 between positive and negative, and by increasing the current value during discharging. Specifically, the vibrations and noises are generated by the generator motor 12 generating electricity while the engine 11 is running (firing operation), and by the generator motor 12 repeatedly performing power running operation to motor the engine 11.

[0048] An example of the air conditioning unit 22 is an air conditioner. The air conditioning unit 22 adjusts the temperature inside the vehicle cabin based on a control signal from the control unit 32. The air conditioning unit 22 can adjust the volume of air output from the air conditioning unit 22. The air conditioning unit 22 can adjust the cooling or heating temperature.

[0049] The vehicle speed sensor 23 detects the speed of the vehicle 1 and outputs the detected speed to the control unit 32. The vehicle speed sensor 23 outputs, as a detection signal, a pulse signal synchronized with a rotating body that rotates as the vehicle 1 travels.

[0050] The control unit 32 controls the cooling control unit 26 or the heating control unit 25 based on the temperature of the battery 14 detected by the temperature sensor 241 .

[0051] The control unit 32 controls the cooling control unit 26 or the heating control unit 25 based on a second standard having a higher cooling performance or heating performance than the first standard, until the riding detection unit 21 detects riding.

[0052] However, even if the passenger detection unit 21 detects a passenger, if the air volume of the air conditioner in the air conditioning unit 22 is equal to or greater than a predetermined value, the control unit 32 may control the cooling control unit 26 to set the cooling fan rotation speed to a third cooling standard based on a third standard that is higher than the first standard and lower than the second standard.

[0053] When the air volume of the air conditioner is equal to or greater than a predetermined value, the vibration and noise caused by the air volume of the air conditioner are greater than the first standard of the cooling control unit 26, so the third cooling standard is set. This allows the battery 14 to be cooled while satisfying the NV performance.

[0054] Similarly, even if the boarding detection unit 21 has detected a boarding, when the air conditioner air volume of the air conditioning unit 22 is equal to or greater than a predetermined value, the control unit 32 may control the temperature rise control unit 25 to set the charge / discharge cycle of the battery 14 to a third temperature rise standard based on a third standard that is higher than the first standard and lower than the second standard.

[0055] When the air volume of the air conditioner is equal to or greater than a predetermined value, the vibration and noise caused by the air volume of the air conditioner are greater than the first criterion of temperature rise control unit 25, so the third temperature rise criterion is set. This makes it possible to raise the temperature of battery 14 while satisfying the NV performance.

[0056] Fig. 2 is a timing chart showing the control process of the cooling control unit 26 in the control device of the vehicle 1 according to the embodiment. As shown in Fig. 2, the vertical axis of Fig. 2 represents the amount of cooling air (output value) of the battery cooling unit 40 by the cooling control unit 26. The horizontal axis of Fig. 2 represents time t.

[0057] 2 also shows graphs G1, G11, G12, air volume A1, air volume A2, and air volume A3, time t1, and time t2. Time t=0 indicates time t when the activation receiving unit 31 receives the activation signal from the vehicle 1. Time t1 indicates time t when the entry detection unit 21 detects entry.

[0058] The range from 0 point to air volume A1 is an example of a first cooling standard, and satisfies the NV performance of the vehicle 1. The range from air volume A1 to air volume A3 is an example of a third cooling standard, and satisfies the NV performance of the vehicle 1 when the vibration and noise caused by the air volume of the air conditioner are greater than the first standard of the cooling control unit 26. The range from air volume A3 to air volume A2 is an example of a second cooling standard, and there is no need to guarantee the NV performance of the vehicle 1.

[0059] When the air volume of the air conditioner is equal to or greater than a predetermined value, the magnitude of the NV performance changes based on the air volume of the air conditioner. The magnitude of the NV performance also changes based on the vehicle speed. Air volume A1 is an example of a first cooling standard when the air conditioner is stopped and the vehicle 1 is stopped.

[0060] Graph G1 shows that from time t=0 to t1, i.e., from the time when the activation receiver 31 receives the activation signal for the vehicle 1 from the electronic key 20 to the time when the boarding detection unit 21 detects boarding, the cooling control unit 26 cools the battery 14 using the cooling fan rotation speed at a second standard that is higher than the first standard.

[0061] Graph G1 shows that after time t1, i.e., after the boarding detection unit 21 detects boarding, the cooling control unit 26 reduces the rotation speed of the cooling fan from the second standard to the first standard to cool the battery 14.

[0062] This allows the battery 14 to be cooled at a high standard until it is detected that the user has entered the vehicle. After it is detected that the user has entered the vehicle, the control can be switched to one that manages the temperature of the battery 14 within a predetermined standard of vibration and noise that is unlikely to cause discomfort to the passenger.

[0063] Graph G11 shows cooling control when the air volume of the air conditioner of the air conditioning unit 22 is equal to or greater than a predetermined value after the boarding detection unit 21 detects boarding. In this case, the control unit 32 may set the rotation speed of the cooling fan as the third cooling standard. This is because the vibration and noise caused by the air volume of the air conditioner exceed the first standard of the cooling control unit 26.

[0064] This allows the rotation speed of the cooling fan to be increased according to the air volume of the air conditioner, so that the battery 14 can be cooled while satisfying the NV performance.

[0065] Graph G12 shows the cooling control of the battery 14 when the vehicle 1 moves from a stopped state to a running state after time t2. In this case, the control unit 32 may change the rotation speed of the cooling fan from the first cooling standard to the third cooling standard. This is because the vibrations and noise caused by the running exceed the first standard of the cooling control unit 26.

[0066] This allows the rotation speed of the cooling fan to be increased according to the vehicle speed, so that the battery 14 can be cooled while satisfying the NV performance.

[0067] Fig. 3 is a timing chart for explaining an example of the control process of the temperature rise control unit 25 in the control device of the vehicle 1 according to the embodiment. As shown in Fig. 3, the vertical axis of Fig. 3 represents the charging and discharging current values ​​of the battery 14. The horizontal axis of Fig. 3 represents time t.

[0068] 3 also shows a graph G2, a current value U1, a current value U2, a current value D1, a time t1, a period T1, and a period T2. Time t=0 indicates the time t at which the activation receiving unit 31 receives the activation signal from the vehicle 1. Time t1 indicates the time t at which the entry detection unit 21 detects entry.

[0069] 3, the range from 0 point to current value U2 is the discharge range of battery 14. On the other hand, the range from 0 point to current value D1 is the charge range of battery 14. Until boarding is detected at time t1, control by temperature rise control unit 25 is in the cycle T1 which is shorter than cycle T2, and after boarding is detected at time t1, the cycle is T2.

[0070] When the magnitude of the current value is from the current value D1 to the current value U2, this is an example of the second temperature rise standard, and there is no need to ensure the NV performance of the vehicle 1. When the magnitude of the current value is from the current value D1 to the current value U1, this is an example of the first temperature rise standard, and the NV performance of the vehicle 1 is satisfied.

[0071] Graph G2 shows that from time t=0 to t1, i.e., from the time when the activation receiver 31 receives the activation signal of the vehicle 1 to the time when the boarding detection unit 21 detects boarding, the heating control unit 25 heats up the battery 14 by setting the charging and discharging period of the battery 14 to a second standard that is shorter than the first standard, and by changing the magnitude of the current value in one period from current value D1 to current value U2.

[0072] Graph G2 shows that after time t1, i.e., after the riding detection unit 21 detects riding, the temperature rise control unit 25 changes the cycle of charging and discharging the battery 14 from cycle T1 to cycle T2. In other words, it shows that the temperature of the battery 14 is raised from the second standard to the first standard.

[0073] This allows the temperature of the battery 14 to be raised at a high standard until it is detected that the user has entered the vehicle. After it is detected that the user has entered the vehicle, the control can be switched to one that manages the temperature of the battery 14 within a predetermined standard of vibration and noise that is unlikely to cause discomfort to the passenger.

[0074] However, even if the boarding detection unit 21 has detected a boarding, if the air volume of the air conditioner of the air conditioning unit 22 is equal to or greater than a predetermined value, the control unit 32 may control the temperature rise control unit 25 to set the charge / discharge cycle of the battery 14 to a third temperature rise standard based on a third standard that is higher than the first standard and lower than the second standard.

[0075] When the air volume of the air conditioner is equal to or greater than a predetermined value, the vibration and noise caused by the air volume of the air conditioner exceed the first standard of temperature rise control unit 25, so the third temperature rise standard is set. This allows the temperature of battery 14 to be raised while satisfying the NV performance.

[0076] 3 shows an example when the vehicle is stopped, but as another embodiment, for example, when the vehicle 1 is traveling after boarding detection, a third temperature rise standard with higher temperature rise performance than the first temperature rise standard may be used. This is because vibrations and noise caused by traveling exceed the first standard of the temperature rise control unit 25. This allows the charge / discharge cycle of the battery 14 to be shortened according to the vehicle speed, so that the temperature of the battery 14 can be raised while satisfying the NV performance.

[0077] 4 is a flowchart showing an operation flow from when the cooling control unit 26 receives an activation signal by the control unit 32 in the control device for the vehicle 1 according to the embodiment to when cooling is performed. As shown in Fig. 4, the control unit 32 receives the activation signal obtained by the activation receiving unit 31 from the electronic key 20 or the like (step S1).

[0078] Next, the control unit 32 determines whether or not the vehicle 1 can be started (step S2).

[0079] When the control unit 32 determines that the vehicle 1 cannot be started (NO in step S2), the control unit 32 does not start the vehicle 1 (step S3).

[0080] When the control unit 32 determines that the vehicle 1 can be started (YES in step S2), the control unit 32 starts the vehicle 1 (step S4).

[0081] The control unit 32 determines whether the battery temperature is equal to or higher than a predetermined threshold value (step S5).

[0082] When the control unit 32 determines that the battery temperature is lower than the predetermined threshold value (NO in step S5), it determines that the battery temperature is within a predetermined range (step S6).

[0083] When the control unit 32 determines that the battery temperature is equal to or higher than the predetermined threshold value (YES in step S5), the control unit 32 then determines whether or not a ride has been detected by the ride detection unit 21 (step S7).

[0084] When the control unit 32 determines that the riding detection unit 21 has not detected riding (NO in step S7), it outputs a control signal to the cooling control unit 26 to cool the battery 14 based on the second cooling standard (step S8).

[0085] When it is determined that the boarding detection unit 21 has detected boarding (YES in step S7), the control unit 32 determines whether the air conditioning air volume by the air conditioning unit 22 is equal to or greater than a predetermined value (step S9).

[0086] If the control unit 32 determines that the air conditioning air volume by the air conditioning unit 22 is less than a predetermined value (NO in step S9), it outputs a control signal to the cooling control unit 26 to cool the battery 14 based on the first cooling standard (step S10).

[0087] When the control unit 32 determines that the air conditioning air volume by the air conditioning unit 22 is equal to or greater than a predetermined value (YES in step S9), it outputs a control signal to the cooling control unit 26 to cool the battery 14 based on the third cooling standard (step S11).

[0088] <Effects of this embodiment> As described above, the control device of the vehicle 1 according to this embodiment includes the boarding detection unit 21 that detects boarding, the cooling control unit 26 that performs cooling of the battery 14 based on a first cooling standard that performs cooling of the battery 14 based on a first standard and a second cooling standard that performs cooling of the battery 14 based on a second standard with a higher cooling performance than the first standard, and the control unit 32 that controls the cooling control unit 26 so that the second cooling standard is achieved when the temperature of the battery 14 is equal to or higher than a predetermined threshold value until the boarding is detected. Therefore, until the boarding is detected, cooling can be performed based on the second standard with a higher cooling performance than the first standard. This allows the temperature of the battery 14 to approach a predetermined range early depending on the presence or absence of an occupant. Therefore, according to the vehicle according to this embodiment, battery deterioration can be suppressed and a decrease in discharge capacity can be suppressed compared to a conventional case in which the battery is used for a long time at high and low temperatures regardless of the presence or absence of an occupant.

[0089] The control device for the vehicle 1 according to this embodiment further includes an air conditioning unit 22 that adjusts the temperature inside the vehicle cabin, and the control unit 32 controls the cooling control unit 26 so that the cooling standard is set to a third standard that is higher in cooling performance than the first standard and lower than the second standard when the air volume of the air conditioning unit 22 is equal to or higher than a predetermined value, even when the vehicle is detected as being in the vehicle. In other words, when the vibration or noise caused by the air volume of the air conditioner exceeds the first standard, the third cooling standard is set. This allows the battery 14 to be cooled early due to the third cooling standard while still satisfying the NV performance even after the vehicle is in the vehicle.

[0090] The control device for the vehicle 1 according to the present embodiment includes an onboard detection unit 21 that detects onboarding, a first temperature-raising standard that raises the temperature of the battery 14 based on a first standard, a second temperature-raising standard that raises the temperature of the battery 14 based on a second standard with a higher temperature-raising performance than the first standard, and a control unit 32 that controls the temperature-raising control unit 25 so that the temperature of the battery 14 becomes the second temperature-raising standard when the temperature of the battery 14 is equal to or lower than a predetermined threshold value until the onboarding is detected. Therefore, until the onboarding is detected, the temperature can be raised based on the second standard with a higher temperature-raising performance than the first standard. This allows the temperature of the battery 14 to approach a predetermined range early depending on the presence or absence of an occupant. Therefore, according to the vehicle according to the present embodiment, battery deterioration can be suppressed and a decrease in discharge capacity can be suppressed compared to a conventional case in which the battery 14 is used for a long time at high and low temperatures regardless of the presence or absence of an occupant.

[0091] The control device for the vehicle 1 according to this embodiment further includes an air conditioning unit 22 that adjusts the temperature inside the vehicle cabin, and the control unit 32 controls the temperature rise control unit 25 so that the third cooling standard is set based on a third standard that is higher in cooling performance than the first standard and lower than the second standard when the air volume of the air conditioning unit 22 is equal to or higher than a predetermined value, even when the vehicle is detected as being in the vehicle. In other words, when the vibration or noise caused by the air volume of the air conditioner exceeds the first standard, the third temperature rise standard is set. This allows the battery 14 to be heated early due to the third temperature rise standard while still satisfying the NV performance even after the vehicle is in the vehicle.

[0092] In addition, in the control device of the vehicle 1 according to this embodiment, the second cooling standard includes at least one of increasing the air volume of the cooling fan to a value higher than the first cooling standard or increasing the flow rate of the water pump to a value higher than the first cooling standard. Therefore, until a ride is detected, cooling can be performed with the second cooling standard in which the air volume of the cooling fan or the flow rate of the water pump is increased to a value higher than the first cooling standard. This allows the temperature of the battery 14 to approach a predetermined range early. Therefore, battery deterioration can be suppressed.

[0093] In the control device for the vehicle 1 according to this embodiment, the control unit 32 controls the cooling control unit 26 to lower the cooling standard from the second cooling standard to the first cooling standard when the vehicle is detected to be boarded. This enables control to satisfy the NV performance, which is noise and vibration that are unlikely to be felt by passengers, by lowering the standard to the first standard when the vehicle is detected to be boarded.

[0094] Furthermore, in the control device for the vehicle 1 according to this embodiment, the second temperature rise standard is to make the cycle of charging and discharging the battery 14 shorter than the first temperature rise standard, and to make the current value of the battery 14 during discharging higher than the first temperature rise standard. Therefore, until a ride is detected, the temperature can be raised by making the cycle of charging and discharging the battery 14 shorter than the first temperature rise standard, and by making the current value of the battery 14 during discharging higher than the first temperature rise standard. This allows the temperature of the battery 14 to approach a predetermined range early. Also, the temperature of the battery 14 can be brought closer to a predetermined range early, and battery deterioration can be suppressed.

[0095] Furthermore, in the control device for the vehicle 1 according to this embodiment, when the control unit 32 detects the passenger getting in, it controls the temperature rise control unit 25 to lower the temperature rise standard from the second temperature rise standard to the first temperature rise standard. In this way, when the passenger getting in is detected, the temperature rise standard is lowered to the first standard, thereby enabling control within the range of NV performance, which is noise and vibration that are unlikely to be felt by the passenger as discomfort.

[0096] Furthermore, in the control device of vehicle 1 according to this embodiment, in the case of vehicle 1 in which battery 14 is provided above the floor panel inside the vehicle cabin, vibrations are easily felt by occupants and noise is easily heard; however, when entry is detected, the control can be switched to manage the temperature of battery 14 within predetermined standards for vibrations and noise that are unlikely to be unpleasant to occupants.

[0097] (Variation 1) In addition to the hybrid vehicle given as an example in the embodiment, the vehicle may be, for example, an electric vehicle that does not have an engine 11. In the case of an electric vehicle, the internal heat generation of the battery 14 may be performed by discharging the battery by starting an air conditioner instead of firing the engine 11.

[0098] This allows the battery 14 to generate heat internally even in a vehicle 1 that does not have an engine 11. This allows an electric vehicle equipped with the battery 14 to perform control so that the temperature of the battery 14 quickly approaches a predetermined range while satisfying the NV performance.

[0099] (Variation 2) During unmanned automatic driving, if the temperature of the battery 14 is equal to or higher than a predetermined threshold, control may be performed according to a second standard that has a higher cooling performance or heating performance than the first standard.

[0100] Although the present embodiment has been described as a control device applied to a series type hybrid system, the present invention is not limited thereto. For example, the present invention can be applied to a series-parallel type hybrid system in which a power split mechanism is provided in the vehicle 1 and both the engine and the motor are used as power sources, a mild type hybrid system in which the motor is used as an auxiliary motor for the engine (e.g., an ISG (Integrated Starter Generator)), and a parallel type hybrid system.

[0101] Although the embodiment of the present invention has been described above, the above-described embodiment is presented as an example. The present invention is not intended to limit the scope of the present invention. The present invention can be embodied in various other forms without departing from the spirit and scope of the present invention. Various omissions, substitutions, and modifications can be made within the scope of the present invention. The scope of the invention and its equivalents as described in the claims are included in the scope and spirit of the disclosure. is included. [Explanation of symbols]

[0102] 1: Vehicle 14: Battery 21: Boarding detection unit 25: Temperature rise control section 26: Cooling control unit 32: Control section

Claims

1. A boarding detection unit that detects boarding; a cooling control unit that performs cooling of the battery based on a first cooling standard and a second cooling standard that performs cooling of the battery based on a second standard having a higher cooling performance than the first standard; a control unit that controls the cooling control unit so that the second cooling reference is satisfied when the temperature of the battery is equal to or higher than a predetermined threshold value until the boarding is detected; A vehicle control device comprising:

2. and an air conditioning unit that adjusts the temperature inside the vehicle cabin. The control unit controls the cooling control unit so that a third cooling standard is set based on a third standard that is higher in cooling performance than the first standard and is equal to or lower than the second standard, when the air volume of the air conditioning unit is equal to or higher than a predetermined value, even when the boarding is detected. The vehicle control device according to claim 1 .

3. A boarding detection unit that detects boarding; a temperature rise control unit that raises the temperature of the battery based on a first temperature rise standard and a second temperature rise standard that raises the temperature of the battery based on a second standard having a higher temperature rise performance than the first standard; a control unit that controls the temperature rise control unit so that the temperature of the battery becomes the second temperature rise reference until the boarding is detected when the temperature of the battery is equal to or lower than a predetermined threshold value; A vehicle control device comprising:

4. and an air conditioning unit that adjusts the temperature inside the vehicle cabin. The control unit controls the temperature rise control unit so that a third temperature rise standard is set based on a third standard having a temperature rise performance higher than the first standard and lower than the second standard when the air volume of the air conditioning unit is equal to or higher than a predetermined value, even when the boarding is detected. The vehicle control device according to claim 3.

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