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anti-collision device
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A technology of anti-collision and collision time, applied in the direction of signal device, automatic start device, sound signal device, etc., can solve the problem of late start time of driving assistance
Active Publication Date: 2018-04-03
TOYOTA JIDOSHA KK
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[0006] However, as in the technology described in Patent Document 1, if the above-mentioned driving assistance is prohibited when the vehicle speed of the own vehicle is lower than a predetermined vehicle speed, in this case, there is a possibility that driving assistance cannot be performed at an appropriate timing. possibility
That is, when the vehicle speed of the vehicle at the moment when the vehicle is rear-end collided is lower than the predetermined vehicle speed, if the vehicle speed of the vehicle does not reach the predetermined vehicle speed after the rear-end collision, the driving assistance will not be performed, so there are driving assistance not performed or driving assistance The possibility of a later start time and so on
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no. 1 Embodiment approach
[0028] Figure 1~3 It is a figure explaining the structure of the anti-collision device 1 of this embodiment. figure 1 It is a block diagram showing an example of the configuration of a vehicle 100 including the collision avoidance device 1 of the present embodiment. figure 2 This is a diagram schematically illustrating the operation of the rear FHL (Flashing Hazard Lamp) system 3 included in the anti-collision device 1 . image 3 It is a diagram showing an example of an in-vehicle configuration of components included in the anti-collision device 1 .
[0029] In addition, descriptions of directions of “front”, “rear”, “left”, “right”, “upper” and “lower” refer to front, rear, left, right, upper and lower of vehicle 100 . In addition, vehicle 100 may be any vehicle such as a vehicle using only an engine as a driving force source or an electric vehicle (a hybrid vehicle, an extended-range vehicle, or an electric vehicle using only a motor as a driving force source).
[0030]...
no. 2 Embodiment approach
[0162] Next, a second embodiment will be described.
[0163] The anti-collision device 1 of the present embodiment further executes processing corresponding to the rear FHL operation in addition to the content of the first embodiment. Hereinafter, the same reference numerals will be assigned to the same constituent elements as those of the first embodiment, and the description will be made focusing on different parts.
[0164] Figure 10 It is a flowchart schematically showing an example of processing corresponding to the rear FHL operation performed by the collision avoidance device 1 (front PCS system 2 ) of this embodiment.
[0165] In addition, this flowchart is executed every predetermined time from IG-ON to IG-OFF of vehicle 100 . In addition, at the start timing of this flowchart (the IG-ON timing of the vehicle 100), predetermined thresholds TFon_th1, TFoff_th1 are set to predetermined values T1, T2, respectively. In addition, the predetermined values T1 and T2 ...
no. 3 Embodiment approach
[0174] Next, a third embodiment will be described.
[0175] The anti-collision device 1 of this embodiment is the same as that of the second embodiment, except for the content of the first embodiment, it further executes processing corresponding to the operation of the rear FHL. Hereinafter, the same reference numerals will be assigned to the same constituent elements as those of the first embodiment, and the description will be made focusing on different parts.
[0176] Figure 11 It is a flowchart schematically showing an example of processing corresponding to the rear FHL operation performed by the collision avoidance device 1 (front PCS system 2 ) of this embodiment.
[0177] In addition, this flowchart is executed every predetermined time from IG-ON to IG-OFF of vehicle 100 . In addition, at the start time of this flowchart (the IG-ON time of the vehicle 100), the volume of the alarm buzzer 62 is set to "standard".
[0178] In step S801, the PCS-ECU 40 determines wheth...
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Abstract
The present invention provides an anti-collision device, comprising: an obstacle detection unit that detects an obstacle in front of the vehicle; an approaching object detection unit that detects an approaching object approaching from behind the vehicle; based on the distance between the vehicle and the obstacle and the distance between the obstacle and the obstacle. The relative speed of the vehicle, a collision time calculation section that calculates the collision time until the vehicle collides with the obstacle; a driving assistance execution section that performs driving assistance for avoiding the collision of the vehicle with the obstacle based on the collision time, when the vehicle speed of the vehicle is a predetermined lower limit When the speed is above and the time to collision is below a predetermined threshold, driving assistance is started, and the driving assistance executing unit performs at least one of the following actions: lowering the lower limit speed according to the increase in the possibility of collision between the approaching object and the vehicle; and When it is determined that there is a possibility of collision between the approaching object and the vehicle, driving assistance is started when the time to collision is equal to or less than a predetermined threshold even if the vehicle speed is not greater than the lower speed limit.
Description
technical field [0001] The present invention relates to an anti-collision device for avoiding a collision between an own vehicle and an object ahead. Background technique [0002] Conventionally, there are known technologies that prohibit execution of driving assistance such as issuing an alarm or performing automatic braking due to the judgment that the vehicle may collide with an obstacle ahead when the vehicle speed of the vehicle is lower than a predetermined speed. . (eg, Patent Document 1). [0003] According to this technique, for example, when the vehicle is traveling at a low speed due to traffic jams, etc., it is possible to suppress the frequent execution of the above-mentioned driving assistance, and it is possible to suppress the violation of the driver of the own vehicle due to the frequent execution of the above-mentioned driving assistance. feel. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 6-1221 [0005] However, for example, wh...
Claims
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Application Information
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