JP2741725B2 - Parking guidance device indicator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display of a parking guidance device for instructing a driver on an optimum trajectory to a parking position. 2. Description of the Related Art Generally, in the operation of driving a car,
Driving operation during parking such as garage parking is the most difficult. [0003] For this reason, a person who has little driving experience, such as a driver who has passed a short period of time after obtaining a driver's license, often makes an erroneous operation at the time of parking, causing the vehicle to be mounted on the garage wall. There is a problem that the vehicle body may be damaged by rubbing with the like. [0004] The present invention has been made in view of the above-mentioned problems of the prior art, and provides a display of a parking guidance device for guiding a vehicle to a parking position. The purpose is to prevent damage and the like. [0005] In order to solve the above-mentioned problems, the present invention provides a method for detecting a current position detected by a position detecting means in accordance with a reference guiding trajectory from a reference position for starting an approach to a parking position. in the display device of the parking guidance system of teaching the traveling direction of the vehicle Te, indicator and two lamps disposed vertically to teach the traveling direction, it is disposed the left-right direction of teaching the steering direction and steering angle together and two lamps, a start switch for starting the guidance display, a storage device capable of storing a plurality of reference induction path, and a selector switch for selecting instructing reference induction trajectory of the storage device, the selector Based on the reference guidance trajectory data selected by the switch and the initial vehicle position data obtained by the position detecting means corresponding to the operation of the start switch. A microcomputer for determining a target guidance trajectory and outputting a signal for displaying a traveling direction of the vehicle, a steering direction, a necessary correction amount of the steering angle and a matching state of the operation result along the target guidance trajectory. When the control device is connected and the steering operation is performed in accordance with the display of the lamp indicating the steering direction and the steering angle, a signal indicating the matching state is output from the control device to the display when the steering operation matches the display. With the above arrangement, the selector switch determines one reference guidance trajectory arbitrarily selected from a plurality of reference guidance trajectories in the storage device, and the control device determines the reference guidance trajectory and the initial vehicle position. A target guidance trajectory is determined based on the data, and the traveling direction of the vehicle, the steering direction, the required correction amount of the steering angle, and the matching state of the operation result are displayed on the lamp along the target guidance trajectory. An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show a parking guidance device provided with an indicator of the parking guidance device according to the present invention. FIG. 1 is a perspective view of a vehicle parked at a parking position, FIG. 2 is a plan view of the vehicle, and FIG. FIG. 4 is a perspective view around the driver's seat of the vehicle,
FIG. 5 is a partially enlarged sectional view of FIG. 2, and FIG. 6 is a block diagram. FIG. 7 is a front view of the display of the parking guidance device according to the present invention. In FIG. 1, reference numeral 1 denotes a multi-story parking device,
The multi-story parking device 1 supports the lift plate 4 so as to be able to move up and down by the guide post 2 and the drive post 3, and sets a parking place where the vehicle 5 can park on the upper surface and below the lift plate 4. The lift plate 4 is connected to a chain in the drive post 3, and is driven up and down through the chain. The drive post 3 of the multi-story parking device 1 and the fence 6 constructed adjacent to the multi-story parking device 1 are provided with reflectors 7, 8, respectively. These reflectors 7 and 8 are targets for detecting the position of the vehicle 5 as described later. The vehicle 5 is, as shown in FIGS.
An approach sensor 10 and a position sensor 11 are provided at the left and right front portions and the left and right rear portions of the vehicle body 9, respectively. As shown in FIG. 3, for example, the rear approach sensor 10 is provided at a corner of the bumper 12, and the rear position sensor 11 is incorporated in a stop lamp 13. The proximity sensor 10 detects an object based on a change in stray capacitance, and the position sensor 11 includes a plurality of lenses 11a and a plurality of light receiving cells for each lens 11a, as shown in FIG. 11b, and the detection cell 11b detects the direction of the vehicle body and the distance to the garage by light incident from each lens 11a. In particular, the provision of the reflection plates 7 and 8 enables accurate detection. The proximity sensor 10 and the position sensor 1
1 is connected to a control device 14 composed of a microcomputer, as shown in FIG. The proximity sensor 10 is described in detail in Japanese Patent Application Laid-Open No. S60-11983, and the position sensor 11 is described in Japanese Patent Publication No. 57-847.
The details are described in Japanese Patent Publication No. JP-B-60-5925 and JP-B-60-5925, so that the description is simplified. In the cabin of the vehicle 5, a rear indicator 16 is provided on a shell panel 15 at the rear of the cabin, and a front display is provided on an instrument panel 17 at the front of the cabin as shown in FIG. The instrument 18 is provided so as to be retractable, a correction switch 19 is provided on the rear surface of the instrument panel 17, a set switch 21, a reset switch 22 and a selector switch 23 are provided on the center console 20. , 21,22,2
3 is connected to the control device 14. Incidentally, reference numeral 24 denotes a start switch provided on the steering wheel 25, and this start switch 24 is also connected to the control device 14. As shown in FIG. 7, the displays 16 and 18
Vision suitable for two arrow-like steering sensations arranged vertically
The traveling direction and the steering angle are determined by the two sets of lamps 26L and 26R having the visual shape suitable for the arc-shaped steering feeling arranged in the left and right directions. The K lamp 26C indicates a state in which all match. Further, as shown in FIG. 4, a plurality of light emitting diodes 27 arranged in the circumferential direction on the steering wheel 25 may be selectively turned on to display the steering direction and the steering angle. The front display 18 protrudes above the instrument panel 17 as shown in the drawing to be in an operating state (standby state). The correction switch 19 is used for correcting data of a reference guidance locus, which will be described later.
The selector switch 23 is used to read the data of the reference guidance trajectory, and is used to select the data of the reference guidance trajectory. However, the set switch 21 is the other switch 2
It is provided so as to be buried deeper than 2 and 23, and the erroneous operation is prevented. The control device 14, as shown in FIG.
A well-known microcomputer comprising U, I / O, ROM and RAM connected by a data bus;
The above four proximity sensors 10 are connected to a data selector 10a.
Similarly, four position sensors 11 are connected via a data selector 10a, and indicators 16, 18 and respective switches 19, 21, 22, 23, 24 are connected. The ROM is composed of a writable memory such as an EP-ROM, and stores best garage entry data (reference guidance trajectory), steering angle data, vehicle specification data, and the like for each field. The current operation data and the like are stored for each field. The I / O of the control device 14 is connected to a steering angle sensor 28 via an A / D converter 29, and further to a distance sensor 30 and a brake switch 31. The steering angle sensor 28 includes a potentiometer or the like for detecting a rotation angle of a steering shaft or a displacement of a link such as a rack, and outputs an analog signal to the A / D converter 29. The distance sensor 30 comprises a pulser or the like which outputs a number of pulse signals corresponding to the rotation amount of the output shaft of the transmission. The brake switch 31 is a switch for operating the brake, and operates the brake device based on the output signal of the control device 14 to stop the vehicle 5. The above-mentioned steering angle sensor 28 uses the rotation speed sensors provided on each wheel of the anti-skid device, calculates the rotation speeds of the left and right wheels from the output signals of these sensors, and displays the steering angle. It is also possible to do so. Next, the operation of the parking guidance device provided with the indicator of the parking guidance device according to the present invention will be described with reference to FIG. In this parking guidance device, first, the locus of a typical driving by a skilled driver is stored in a ROM or the like as a reference guidance locus Tm by operating the set switch 21. At this time, the control device 14 controls the vehicle body 9 with respect to the garage position based on the distance between the reflectors 7 and 8 detected by the position sensor 11.
After calculating the position and angle of the reference guidance trajectory Tm and specifying the set position Ps as the starting point, the vehicle 5 is tracked by the steering angle sensor 28 and the distance sensor 30 and the reference guidance trajectory to the parking position Pe, which is the end point. Tm is stored. Next, when the vehicle is guided to the parking position Pe by the parking guidance device, the driver moves the vehicle 5 to the set position P.
start switch 2 when located at a position Pm near
As described above, the controller 14 calculates the current position Pm of the vehicle 5 with respect to the set position Ps based on the distance between the reflectors 7 and 8 detected by the position sensor 11 as described above. Then, the control device 14 determines the reference guidance trajectory Tm corresponding to the positional deviation between the set position Ps and the current position Pm.
The target guidance trajectory Tt which continues from the current position Pm to the parking position Pe is determined using , for example, a similar trajectory of the trajectory Tm, and the indicators 16 and 18 are displayed on the displays 16 and 18 according to the trajectory Tt together with the steering direction. The steering angle is displayed as the amount of deviation. Therefore, the driver turns the steering wheel 25 on the O.D. K lamp 26C
The vehicle 5 can be driven close to the entrance of the garage where the target guidance trajectory Tt matches the reference guidance trajectory Tm with the same skill as a skilled driver by steering so that is always lit. Subsequently, the vehicle 5 is guided according to the reference guidance trajectory Tm. That is, the control device 14 detects and tracks the traveling direction and the distance of the vehicle 5 by the steering angle sensor 28 and the distance sensor 30, and has the same skill and skill as a skilled driver according to the position of the vehicle 5 as described above. So that the display 16,
18 displays the steering direction and the steering angle. When an obstacle or the like exists in the traveling direction of the vehicle 5, the proximity sensor 10 detects the obstacle, the brake switch 31 is operated, and the vehicle 5 stops. The partial change of the reference guide trajectory Tm, for example, the change of the parking position Pe, is performed by the correction switch 19.
Performed by When a plurality of reference guidance trajectories Tm are stored in the ROM or the like, the operation of the selector switch 23 selects the reference guidance trajectory Tm. Further, even in the case of parallel parking as shown in FIG. 9, the position is detected with reference to the reflectors 7 and 8, and the vehicle 5 is guided according to the reference guiding locus Tm. The reference numerals in FIG. 9 correspond to those in FIG. In the embodiment described above, the display 16, the display 16,
The steering direction and the steering angle are taught to the driver by 18.
It is needless to say that the steering can be directly performed by the actuator. As described above, according to the present invention, the selector switch determines one reference guidance trajectory arbitrarily selected from a plurality of reference guidance trajectories in the storage device, and the control device controls the reference guidance trajectory. Then, the target guidance trajectory is determined based on the initial vehicle position data, and the traveling direction of the vehicle, the steering direction, the required correction amount of the steering angle, and the matching state of the operation result are displayed along the target guidance trajectory. Therefore, the display of the parking guidance device of the present invention operates by displaying the required correction amount of the driving operation and the operation result corresponding to the reference guidance trajectory and the target guidance trajectory determined corresponding to the initial vehicle position. Because it provides guidance, even if the simple condition of positioning the vehicle near the reference position and pressing the start button is satisfied, even if advanced driving operation including turning operation required when moving forward from a narrow road is required, Thus, it is possible for the skilled person to enter the parking position according to the reference guidance trajectory. Further, since the parking guidance device of the present invention can be selected from a plurality of reference guidance trajectories in the storage device,
By storing in advance a plurality of approach trajectories, for example, a reverse approach as a general garage entry, a forward approach for exhaust gas handling, cargo handling, etc. It is possible to arbitrarily select the approach by forward or backward including complicated guidance, and to enter the garage like an expert.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle equipped with a display of a parking guidance device according to the present invention parked at a parking position. FIG. 2 is provided with a display of a parking guidance device according to the present invention. FIG. 3 is a perspective view of a rear portion of the vehicle provided with a display of the parking guidance device according to the present invention. FIG. 4 is a view around a driver seat of a vehicle provided with a display of the parking guidance device according to the present invention. FIG. 5 is a partially enlarged cross-sectional view of FIG. 2; FIG. 6 is a block diagram of a parking guidance device provided with a display of the parking guidance device according to the present invention. FIG. 7 is a display of a parking guidance device according to the present invention. FIG. 8 is an explanatory diagram of the operation of the parking guidance device. FIG. 9 is an explanatory diagram of the operation of the parking guidance device. [Description of References] 1. Multi-level parking device, 5 ... Vehicle, 7, 8 ... Reflector (position detection) Means), 10 ... proximity sensor (position detecting means), 11 ...
Position sensor (position detection means), 14 ... control device, 16,
18: display, 26B, 26F: arrow-shaped lamp, 26
L, 26R: arc-shaped ramp, Pe: parking position, Pm ...
Current position, Ps: Set position, Tm: Reference guidance trajectory, Tt
... Target trajectory.

Claims (1)

(57) [Claims] In the display of the parking guidance device which teaches the traveling direction of the vehicle according to the current position detected by the position detecting means according to the reference guidance trajectory from the reference position to start the approach to the parking position, the display is the traveling direction two lamps arranged longitudinally of teaching, provided with a two lamps arranged in the lateral direction of teaching the steering angle steering direction, a start switch for starting the guidance display, a plurality of reference A storage device capable of storing a guidance trajectory, a selector switch for selecting and instructing a reference guidance trajectory of the storage device, and a reference guidance trajectory data selected by the selector switch and obtained in accordance with the operation of the start switch. A target guidance trajectory is determined based on the initial vehicle position data by the position detection means, and the vehicle travels along the target guidance trajectory. Connected to a control device consisting of a microcomputer, which outputs a signal for displaying a required correction amount of the steering direction and the steering angle and a matching state of the operation result, and performing steering according to a display of a lamp for displaying the steering direction and the steering angle. A signal indicating a matching state is output from the control device to the display device when the steering matches the display.