Vehicle Control Systems

Abstract

To improve accuracy of vehicle control using an outside air temperature.SOLUTION: A control section in a vehicle control system executes: determination processing which determines whether an amount of light received is equal to or more than a prescribed received light threshold; first selection processing which selects a first outside air temperature to be an outside air temperature detected by a first outside air sensor as an outside air temperature for control when determining that the own vehicle speed is a prescribed vehicle speed threshold or more and selects an outside air temperature after correction obtained by correcting the first outside air temperature as the outside air temperature for control when determining that the own vehicle speed is not the vehicle speed threshold or more, when determining that the amount of light received is equal to or more than the received light threshold in the determination processing; and second selection processing which selects a second outside air temperature to be an outside air temperature detected by a second outside air temperature sensor as the outside air temperature for control when determining that the detected amount of light received is not equal to or more than the received light threshold.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a vehicle control system that performs vehicle control in response to an outside air temperature. [Background technology]

[0002] There is known a vehicle control system that controls a vehicle based on a detected outside air temperature. For example, the following Patent Document 1 discloses a vehicle air conditioning control system that calculates a control signal corresponding to a thermal load in a vehicle cabin based on the outside air temperature, the inside air temperature, the amount of irradiation, and a set temperature, and controls an air conditioner based on the calculated control signal. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 4-24114 Summary of the Invention [Problem to be solved by the invention]

[0004] An outside air temperature sensor that detects the outside air temperature as the temperature around the vehicle used for controlling the vehicle is mounted, for example, inside the front bumper of the vehicle.

[0005] Such outside air temperature sensors are positioned so that they are shielded from sunlight and exposed to sufficient wind while the vehicle is traveling, and so will not detect a temperature higher than the actual outside air temperature if the vehicle is traveling at a sufficient speed. However, if the vehicle is traveling at a low speed or is stopped for an extended period of time, the outside air temperature sensor will not be exposed to sufficient wind while the vehicle is traveling, and the sensor may detect a temperature higher than the actual outside air temperature due to radiant heat from heat sources such as the engine.

[0006] Therefore, when the vehicle is traveling at low speed or stopped, for example, the outside air temperature value used for control is not updated to prevent a temperature higher than the actual outside air temperature from being detected.

[0007] However, in cold environments such as winter, the actual outside temperature may be higher indoors, such as in an underground parking lot or an air-conditioned multi-storey car park, than outdoors. If the outside temperature value used for control is not updated in such a situation because the vehicle is traveling at a low speed or is stopped, the outside temperature may not be detected accurately, which may reduce the accuracy of vehicle control.

[0008] The present invention has been made in consideration of the above circumstances, and has an object to improve the accuracy of vehicle control using outside air temperature. [Means for solving the problem]

[0009] A vehicle control system according to one embodiment of the present invention includes a light receiving sensor that detects an amount of light incident on a vehicle, a vehicle speed sensor that detects the speed of the host vehicle as the host vehicle speed, a first outside air temperature sensor that detects an outside air temperature of the host vehicle, a second outside air temperature sensor that is provided at a position different from the first outside air temperature sensor and detects the outside air temperature of the host vehicle, and a control unit that selects a control outside air temperature to be used for vehicle control, the control unit having one or more processors and a storage medium on which a program executed by the one or more processors is stored, the program including one or more instructions, the instructions instructing the one or more processors to detect when the amount of received light is below a predetermined light receiving threshold. the control device executes a determination process for determining whether the amount of received light is greater than or equal to a predetermined value; and, if the determination process determines that the amount of received light is greater than or equal to the light receiving threshold, a first selection process for selecting a first outside air temperature, which is the outside air temperature detected by the first outside air temperature sensor, as the control outside air temperature if it is determined that the vehicle speed is greater than or equal to a predetermined vehicle speed threshold, and for selecting a corrected outside air temperature obtained by correcting the first outside air temperature as the control outside air temperature if it is determined that the vehicle speed is not greater than or equal to the vehicle speed threshold; and a second selection process for selecting a second outside air temperature, which is the outside air temperature detected by the second outside air temperature sensor, as the control outside air temperature if it is determined that the amount of received light is not greater than or equal to the light receiving threshold.

[0010] According to the above, the first outside air temperature sensor and the second outside air temperature sensor are provided at different positions. Therefore, it is possible to provide the first outside air temperature sensor at a position susceptible to the influence of radiant heat from the engine, etc., and provide the second outside air temperature sensor at a position less susceptible to the influence of the radiant heat. In this case, it is possible to select the second outside air temperature detected by the second outside air temperature sensor, which is less susceptible to the influence of the radiant heat, as the control outside air temperature, according to the amount of light received by the light receiving sensor. Effect of the Invention

[0011] According to the present invention, it is possible to improve the accuracy of vehicle control using the outside air temperature. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a schematic diagram showing an example of the positions of various sensors in a vehicle control system. [Diagram 2] FIG. 4 is a schematic diagram showing another example of the positions of various sensors in the vehicle control system. [Diagram 3] FIG. 1 is a block diagram showing an example of the configuration of a vehicle control system. [Figure 4] FIG. 2 is a schematic diagram showing a configuration example of a sensor unit. [Diagram 5] 13 is an example of a flowchart of a process executed by a control unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment will be described with reference to FIGS. In addition, in the configurations shown in the drawings referred to in the description of the present embodiment, the parts necessary for realizing the present embodiment and the configurations surrounding them are extracted and shown in a schematic manner.

[0014] <1. Example of vehicle control system configuration> 1 and 2, a vehicle 100 according to the present embodiment includes a vehicle control system 1. Note that, although the present embodiment will be described taking as an example a vehicle 100 including an engine 10, the vehicle 100 can also be applied to, for example, an electric vehicle.

[0015] As shown in FIG. 3, the vehicle control system 1 includes a light receiving sensor 2, a vehicle speed sensor 3, a first outside air temperature sensor 4, a second outside air temperature sensor 5, a control unit 6, and an object detection unit .

[0016] The light receiving sensor 2 detects the amount of light incident on the vehicle 100 and supplies the detection result to the control unit 6. The light receiving sensor 2 can be used in combination with a light receiving sensor used for, for example, automatic headlamp lighting control. In this case, the light receiving sensor 2 is disposed, for example, on the dashboard below the windshield.

[0017] The vehicle speed sensor 3 detects the traveling speed of the vehicle 100 as the host vehicle speed, and supplies the detection result to the control unit 6 .

[0018] The first outside air temperature sensor 4 detects the outside air temperature of the vehicle 100 and supplies the detection result to the control unit 6 . The first outside air temperature sensor 4 is attached at a position where light from outside the vehicle 100 is blocked and where the first outside air temperature sensor 4 is exposed to wind as the vehicle 100 travels.

[0019] The first outside air temperature sensor 4 is provided, for example, inside the outer casing 11 of the vehicle 100 and in a space outside the passenger compartment 12. The first outside air temperature sensor 4 is attached, for example, to the inside of the front bumper of the vehicle 100 as shown in FIG.

[0020] At this time, since the first outside air temperature sensor 4 is located near the engine 10, it is affected by radiant heat from the heat source of the engine 10. However, when the vehicle speed of the vehicle 100 is sufficiently secured, a sufficient amount of wind from the vehicle while traveling hits the first outside air temperature sensor 4, so the effect of the radiant heat on the first outside air temperature sensor 4 can be mitigated.

[0021] On the other hand, when the vehicle 100 is traveling at a low speed or is stopped, or when the vehicle speed is not sufficient, the first outside air temperature sensor 4 is not exposed to a sufficient amount of wind while the vehicle is traveling, and the first outside air temperature sensor 4 is affected by radiant heat from the engine 10. Here, the state in which the vehicle 100 is traveling at a low speed refers to a traveling state at which the vehicle 100 can be stopped immediately, such as when the vehicle 100 is traveling slowly, e.g., when the vehicle speed is 10 km / h.

[0022] The second outside air temperature sensor 5 detects the outside air temperature of the vehicle 100 and supplies the detection result to the control unit 6. Hereinafter, when a distinction is necessary for convenience of explanation, the outside air temperature detected by the above-mentioned first outside air temperature sensor 4 will be referred to as the first outside air temperature, and the outside air temperature detected by the second outside air temperature sensor 5 will be referred to as the second outside air temperature.

[0023] The second outside air temperature sensor 5 is attached at a position different from the first outside air temperature sensor 4 and at a position where it is exposed to wind while the vehicle 100 is running. In addition, the second outside air temperature sensor 5 is attached at a position where it is unlikely to be affected by heat sources such as the engine 10 when detecting the second outside air temperature.

[0024] Therefore, unlike the first outside air temperature sensor 4, the second outside air temperature sensor 5 can detect the second outside air temperature in a state where it is less susceptible to influence from heat sources such as the engine 10, even when the vehicle 100 is traveling at a low speed or is stopped.

[0025] The second outside air temperature sensor 5 is provided, for example, on the surface of the vehicle 100. Here, the surface of the vehicle 100 refers to a portion outside the inner surface of the outer casing 11 of the vehicle 100, and the first outside air temperature sensor 4 is attached, for example, on the roof of the vehicle 100 shown in Fig. 1, on the surface of a door on the side of the vehicle 100 or inside the door knob, or under the side mirror of the vehicle 100 shown in Fig. 2. In this way, for example, the second outside air temperature sensor 5 is attached at a position farther away from the heat source of the engine 10 than the first outside air temperature sensor 4.

[0026] The second outside air temperature sensor 5 is intended to detect the outside air temperature in places such as underground parking lots and indoor parking lots, which are less susceptible to temperature changes caused by external light compared to outdoors, as described below. Therefore, the second outside air temperature sensor 5 may be attached in a position where it is exposed to external light. Also, a sensor with the same performance (same product) as the first outside air temperature sensor 4 may be used as the second outside air temperature sensor 5.

[0027] The object detection unit 7 is disposed at the four corners of the vehicle 100, front, rear, left and right, and detects objects in the front-rear direction of the vehicle 100 using built-in ultrasonic sensors 8. The object detection unit 7 is attached to the front bumper or rear bumper of the vehicle 100, for example.

[0028] 4, a temperature sensor built into the object detection unit 7 can be used as the second outside air temperature sensor 5. This makes it possible to reduce the number of parts required to realize the vehicle control system 1.

[0029] The control unit 6 has one or more processors 20 and a storage medium storing a program executed by the processor 20. The program includes one or more instructions, and the instructions cause the processor 20 to execute various processes.

[0030] The control unit 6 selects an outside air temperature to be used for vehicle control as a control outside air temperature, for example, based on the outside air temperature supplied from the first outside air temperature sensor 4 or the second outside air temperature sensor 5. The control unit 6 also executes various vehicle controls based on the selected control outside air temperature. The control unit 6, for example, supplies the control outside air temperature to the object detection unit 7, corrects the detection value by the ultrasonic sensor 8 based on the control outside air temperature, and detects objects present in the front-rear direction of the vehicle 100 based on the corrected detection value.

[0031] <2. Processing example of the control section> The flow of the process executed by the control unit 6 in this embodiment will be described with reference to Fig. 5. The control unit 6 repeatedly executes the process shown in Fig. 5 at predetermined intervals.

[0032] First, in step S101, the control unit 6 acquires the amount of received light supplied from the light receiving sensor 2. Then, in step S102, the control unit 6 determines whether or not the value of the amount of received light is equal to or greater than a predetermined light receiving threshold value Tx.

[0033] The light reception threshold Tx is set as a value of the amount of received light that is a reference for determining whether the vehicle 100 is outdoors or indoors, such as in an underground parking lot or a multi-storey parking lot. When a sufficient amount of received light cannot be secured due to factors such as rainy weather, the control unit 6 may determine whether the vehicle 100 is indoors or outdoors by also using detection information acquired from a raindrop sensor (not shown).

[0034] When it is determined that the value of the amount of received light is equal to or greater than the light-receiving threshold value Tx, the control unit 6 advances the process from step S102 to step S103. In this manner, when the value of the amount of received light is equal to or greater than the light-receiving threshold value Tx, it is estimated that the vehicle 100 is outdoors.

[0035] In step S103, the control unit 6 acquires the first outside air temperature supplied from the first outside air temperature sensor 4.

[0036] After that, in step S104, the control unit 6 acquires the host vehicle speed supplied from the vehicle speed sensor 3. Then, in step S105, the control unit 6 determines whether or not the value of the host vehicle speed is equal to or greater than a predetermined vehicle speed threshold value Ty.

[0037] The vehicle speed threshold Ty is set as a reference vehicle speed value for determining whether the vehicle speed is a speed at which the traveling wind sufficiently hits the first outside air temperature sensor 4, that is, a vehicle speed at which the first outside air temperature sensor 4 is less susceptible to the effects of radiant heat from the engine 10.

[0038] When it is determined that the host vehicle speed is equal to or greater than the vehicle speed threshold Ty, the control unit 6 advances the process from step S105 to step S106. When the host vehicle speed is equal to or greater than the vehicle speed threshold Ty, it is estimated that the vehicle speed of the vehicle 100 is such that the traveling wind sufficiently hits the first outside air temperature sensor 4, and that the first outside air temperature sensor 4 is not easily affected by the radiant heat of the engine 10.

[0039] In step S106, the control unit 6 selects the first outside air temperature as the control outside air temperature and ends the processing in Fig. 5. The influence of radiant heat from the engine 10 on the first outside air temperature detected by the first outside air temperature sensor 4 is mitigated by the fact that the first outside air temperature sensor 4 is sufficiently exposed to the wind while traveling. Therefore, the difference between the first outside air temperature and the actual outside air temperature becomes small, and the first outside air temperature can be used as the control outside air temperature.

[0040] When it is determined that the vehicle speed is not equal to or greater than the vehicle speed threshold Ty, the control unit 6 advances the process from step S105 to step S107. When the vehicle speed is less than the vehicle speed threshold Ty, it is estimated that the vehicle 100 is traveling at a low speed or is stopped, and the first outside air temperature sensor 4 is not sufficiently exposed to the wind.

[0041] In such a state, the first outside air temperature detected by the first outside air temperature sensor 4 is significantly affected by radiant heat from the engine 10, causing a discrepancy between the actual outside air temperature and the first outside air temperature. Therefore, in step S107, the control unit 6 executes a correction process for the first outside air temperature to obtain a corrected outside air temperature.

[0042] As the correction process, the control unit 6 executes a process of setting the value of the first outside air temperature detected before it is determined that the vehicle speed of the vehicle 100 is not equal to or greater than the vehicle speed threshold Ty as the corrected outside air temperature. The control unit 6 executes a process of setting the value of the first outside air temperature most recently detected before it is determined that the vehicle speed is not equal to or greater than the vehicle speed threshold Ty as the corrected outside air temperature.

[0043] In this way, by correcting the outside air temperature to the first outside air temperature detected before it is determined that the vehicle speed is not greater than or equal to the vehicle speed threshold Ty, i.e., the first outside air temperature detected when the first outside air temperature sensor 4 is sufficiently exposed to the wind while traveling and is not significantly affected by the radiant heat from the engine 10, the deviation from the actual outside air temperature can be reduced.

[0044] Also, for example, an upper limit for the detection value of the first outside air temperature may be set for each cycle in which the process of Fig. 5 is performed. In this case, as a correction process, the control unit 6 executes a process in which, when the detected first outside air temperature exceeds the set upper limit, the first outside air temperature is corrected to the set upper limit, and the corrected first outside air temperature is set as the corrected outside air temperature. In this way, various examples of the correction process of the first outside air temperature executed by the control unit 6 are conceivable.

[0045] In the next step S108, the control unit 6 selects the corrected outside air temperature as the control outside air temperature and ends the processing in Fig. 5. In this way, when it is estimated to be outdoors, the first outside air temperature detected in an environment where the first outside air temperature sensor 4 is not exposed to the wind while traveling and is affected by radiant heat from the engine 10 is not used as the control outside air temperature as it is, so that a control outside air temperature with a value that is close to the actual outside air temperature can be obtained. Therefore, the accuracy of vehicle control based on the control outside air temperature can be improved.

[0046] On the other hand, if it is determined in step S102 that the value of the amount of received light is not equal to or greater than the light-receiving threshold value Tx, the control unit 6 advances the process from step S102 to step S109. In this manner, if the value of the amount of received light is not equal to or greater than the light-receiving threshold value Tx, it is estimated that the vehicle 100 is indoors, such as in an underground parking lot or a multi-story parking lot.

[0047] In step S109, the control unit 6 obtains the second outside air temperature supplied from the second outside air temperature sensor 5, and in the following step S110, the control unit 6 selects the second outside air temperature as the control outside air temperature and ends the processing of FIG.

[0048] In most cases, the vehicle 100 is traveling at a low speed or is parked indoors, such as in an underground parking lot or a multi-storey car park, but in cold environments such as winter, the actual outside temperature may be higher than the outdoor temperature in an underground parking lot or an air-conditioned multi-storey car park. Therefore, in order to improve the accuracy of vehicle control indoors, it is necessary to accurately detect the actual outside temperature.

[0049] Therefore, by selecting the second outside air temperature supplied from the second outside air temperature sensor 5, which is less affected by radiant heat from the engine 10 even when the vehicle is traveling at low speed or stopped, as the outside air temperature for control, vehicle control can be performed that accurately reflects the actual outside air temperature even in such indoor environments.

[0050] Based on the control outside air temperature selected by the above-mentioned process of FIG. 5, the control unit 6 executes various vehicle controls.

[0051] The control unit 6, for example, supplies a control outside air temperature to the object detection unit 7, causes the object detection unit 7 to correct the detection value detected by the ultrasonic sensor 8 based on the control outside air temperature, and causes the object detection unit 7 to detect the position of an object present in the fore-and-aft direction of the vehicle 100 based on the corrected detection value.

[0052] The ultrasonic sensor 8 built into the object detection unit 7 detects the distance to an object from the time it takes for the emitted ultrasonic waves to propagate and the waveform, so the detection value varies depending on the outside temperature. Therefore, it is necessary to correct the detection value based on the outside temperature. In this case, the accuracy of object detection can be improved by correcting the detection value based on the control outside temperature obtained by the process of Figure 5.

[0053] Vehicle 100 can also be applied to an electric vehicle equipped with a fuel cell. In this vehicle 100, it is considered that the flow rate of the cooling water for the fuel cell is controlled based on the outside air temperature. In this case, the cooling accuracy of the fuel cell can be improved by controlling the flow rate of the cooling water based on the control outside air temperature obtained by the processing of Fig. 5. In this case, for example, the first outside air temperature sensor 4 is provided at a position that is affected by radiant heat from the fuel cell, and the second outside air temperature sensor 5 is provided at a position that is not easily affected by the radiant heat.

[0054] In addition, by using the control outside air temperature obtained by the process of FIG. 5 in vehicle control that requires the value of the outside air temperature, the accuracy of each vehicle control can be improved.

[0055] <3. Summary> As described above, the vehicle control system 1 provided in the vehicle 100 includes the light receiving sensor 2 that detects the amount of received light, the vehicle speed sensor 3 that detects the speed of the vehicle 100 (host vehicle) as the host vehicle speed, the first outside air temperature sensor 4 that detects the outside air temperature of the vehicle 100, the second outside air temperature sensor 5 that is provided at a position different from the first outside air temperature sensor 4 and detects the outside air temperature of the vehicle 100, and the control unit 6 that selects a control outside air temperature to be used for vehicle control. The control unit 6 has one or more processors 20 and a storage medium in which a program executed by the processor 20 is stored, the program including one or more instructions, and the instructions cause the processor 20 to perform a determination process (FIG. 1 and 5), a first selection process (S105 to S108) is executed in which, if the determination process determines that the amount of received light is equal to or greater than the light-receiving threshold Tx, the first outside air temperature detected by the first outside air temperature sensor 4 is selected as the control outside air temperature if the vehicle speed is determined to be equal to or greater than a predetermined vehicle speed threshold Ty, and a corrected outside air temperature obtained by correcting the first outside air temperature is selected as the control outside air temperature if the vehicle speed is determined to be not equal to or greater than the vehicle speed threshold Ty, and a second selection process (S109 and S110) is executed in which, if the determination process determines that the detected amount of received light is not equal to or greater than the light-receiving threshold Tx, the second outside air temperature detected by the second outside air temperature sensor 5 is selected as the control outside air temperature (FIGS. 1 and 5).

[0056] As described above, the first outside air temperature sensor 4 and the second outside air temperature sensor 5 are provided in different positions. Therefore, it is possible to provide the first outside air temperature sensor 4 in a position that is easily affected by radiant heat from the engine 10, for example, and the second outside air temperature sensor 5 in a position that is less affected by the radiant heat. In this case, depending on the amount of light received by the light receiving sensor 2, it is possible to select the second outside air temperature detected by the second outside air temperature sensor 5, which is less affected by the radiant heat, as the control outside air temperature.

[0057] Therefore, even when the vehicle 100 is traveling at a low speed or is stopped indoors, such as in an underground parking lot or a multi-storey car park, the control outside air temperature used for vehicle control can be detected with high accuracy. This makes it possible to improve the accuracy of vehicle control using the control outside air temperature.

[0058] This is particularly suitable for use indoors, such as in underground car parks or air-conditioned multi-storey car parks in cold environments such as winter, where the actual outside temperature is higher than the outdoor temperature.

[0059] In the above vehicle control system 1, the first outside air temperature sensor 4 is provided in a space inside the outer casing 11 of the vehicle 100 and outside the vehicle interior 12, and the second outside air temperature sensor 5 is provided on a surface portion of the vehicle 100.

[0060] The first outside air temperature sensor 4 is provided inside the vehicle 100, for example, on the inside of the front bumper, to avoid direct exposure to sunlight, etc. In contrast, the second outside air temperature sensor 5 is provided on the surface of the vehicle 100, and can therefore be provided in a position less susceptible to the effects of radiant heat from a heat source such as the engine 10, compared to the first outside air temperature sensor 4 provided inside the vehicle 100. This improves the accuracy of vehicle control using the above-mentioned outside air temperature.

[0061] The instructions contained in the program stored in the storage medium in the above-mentioned vehicle control system 1 are, as a first selection process, when it is determined that the vehicle speed of the vehicle 100 is not greater than or equal to the vehicle speed threshold Ty, the value of the first outside air temperature detected before it is determined that the vehicle speed of the vehicle 100 is not greater than or equal to the vehicle speed threshold Ty is set as the corrected outside air temperature (S107 to S108 in Figure 5).

[0062] When the first outside air temperature sensor 4 is not sufficiently exposed to the wind generated by the vehicle 100 while the vehicle is traveling at a low speed or while the vehicle is stopped, the first outside air temperature sensor 4 is significantly affected by radiant heat from the engine 10, and the first outside air temperature is detected as a value higher than the actual outside air temperature. Therefore, by using the first outside air temperature detected when the sensor was exposed to sufficient wind during the most recent travel as the corrected outside air temperature, a value that is less likely to deviate from the actual outside air temperature can be selected as the control outside air temperature. This can improve the accuracy of vehicle control using the control outside air temperature.

[0063] The vehicle control system 1 described above includes an object detection unit 7 that performs object detection using an ultrasonic sensor 8, and the control outside air temperature is used for correcting and controlling the detection value by the ultrasonic sensor 8 (FIG. 3).

[0064] By using the control outside air temperature to correct the detection value of the ultrasonic sensor 8, it is possible to accurately detect objects in front of and behind the vehicle 100. Therefore, the object detection accuracy of the object detection unit 7 can be improved.

[0065] The second outside air temperature sensor 5 in the above vehicle control system 1 is a temperature sensor built into the object detection unit 7 (FIG. 4).

[0066] This makes it possible to detect the second outside air temperature by using the outside air temperature sensor included in the ultrasonic sensor 8 as the second outside air temperature sensor 5. This makes it possible to reduce the number of parts constituting the vehicle control system 1, thereby reducing the number of manufacturing processes for the vehicle 100 and reducing manufacturing costs.

[0067] The effects described in the present disclosure above are illustrative and not limiting. That is, other effects may be achieved, or some of the effects described in the present disclosure may be achieved. Furthermore, the above-described embodiment is merely an example and does not limit the present invention. Therefore, it goes without saying that various modifications are possible depending on the design, etc., as long as they do not deviate from the technical idea of ​​the present invention. Note that not all of the combinations of the configurations described in the above-described embodiment are necessarily essential to solving the problems of the present invention. [Explanation of symbols]

[0068] 1 Vehicle Control System 2 Light receiving sensor 3 Vehicle speed sensor 4. No. 1 Outside Air Temperature Sensor 5 Second Outside Air Temperature Sensor 6 Control section 7 Object detection section 8 Ultrasonic Sensors 100 vehicles Tx reception threshold Ty vehicle speed threshold

Claims

1. a light receiving sensor for detecting an amount of received light; A vehicle speed sensor that detects the speed of the host vehicle as the host vehicle speed; A first outside air temperature sensor for detecting an outside air temperature of the host vehicle; a second outside air temperature sensor provided at a position different from that of the first outside air temperature sensor and configured to detect an outside air temperature of the host vehicle; A control unit that selects a control outside air temperature to be used for vehicle control, The control unit has one or more processors and a storage medium storing a program executed by the one or more processors; The program includes one or more instructions, The instructions cause the one or more processors to: a determination process for determining whether the amount of received light is equal to or greater than a predetermined light receiving threshold; a first selection process for selecting a first outside air temperature, which is the outside air temperature detected by the first outside air temperature sensor, as the control outside air temperature when it is determined in the determination process that the amount of received light is equal to or greater than the light receiving threshold value and that the vehicle speed is equal to or greater than a predetermined vehicle speed threshold value, and for selecting a corrected outside air temperature obtained by correcting the first outside air temperature as the control outside air temperature when it is determined that the vehicle speed is not equal to or greater than the vehicle speed threshold value; a second selection process for selecting, when it is determined that the amount of received light is not equal to or greater than the light receiving threshold value, a second outside air temperature, which is the outside air temperature detected by the second outside air temperature sensor, as the control outside air temperature. Vehicle control system.

2. the first outside air temperature sensor is provided in a space inside an outer casing of the host vehicle and outside a vehicle compartment; The second outside air temperature sensor is provided on a surface of the vehicle. The vehicle control system of claim 1 .

3. The instruction causes the one or more processors to execute, as the first selection process, a process of setting the value of the first outside air temperature detected before it is determined that the host vehicle speed is not equal to or higher than the vehicle speed threshold as the corrected outside air temperature when it is determined that the host vehicle speed is not equal to or higher than the vehicle speed threshold. The vehicle control system according to claim 1 or 2.

4. An object detection unit that detects an object using an ultrasonic sensor, The control outside air temperature is used for correcting and controlling the detection value by the ultrasonic sensor. A vehicle control system according to any one of claims 1 to 3.

5. The second outside air temperature sensor is a temperature sensor built into the object detection unit. The vehicle control system according to claim 4.

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