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1. 发明专利

JPS5870322A SPEED CONTROLLER FOR CAR 失效
公开(公告)号：JPS5870322A
公开(公告)日：1983-04-26
申请号：JP16907781
申请日：1981-10-22
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD , FUJITSU TEN LTD
发明人： IKUMA AKIRA , MIZUNO YOSHIKAZU , NOGAMI TAKAHIRO , HAYASHI KUNIHISA , FUJITA YASUHIRO
IPC分类号： G05D13/62 , B60K31/00 , B60W30/00 , F02D9/02 , F02D29/02 , G01S13/93
摘要： PURPOSE:To attain a speed control with high safety, by regarding that the distance between cars has no change as long as the effectiveness is not assured for the data on the distance between cars and therefore preventing a sudden acceleration of the car. CONSTITUTION:A radar device 12 detects the distance between a car and its preceding car by a radar sensor 12A and then feeds a data signal 12B showing a safety speed of the car and a data effectiveness signal 12C showing whether the data is effective or not to a control circuit 1. The circuit 1 receives the repetitive information on the safety speed of car from the device 12 and decides a target car speed in a range that does not exceed the safety speed to start the treveling at a constant speed when a settting operation is carried out. In case the data on the inter-car distance has an abnormal change, the effective signal supplied from the device 12 is turned ineffective. As a result, the safety speed is not rewritten. Thus the value of safety speed is held even though the car reaches a curve and the preceding car gets out of the range of directivity of the sensor 12A.

2. 发明专利

JPS6024479A REAR WARNING APPARATUS FOR VEHICLE 失效
公开(公告)号：JPS6024479A
公开(公告)日：1985-02-07
申请号：JP13247983
申请日：1983-07-20
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CO LTD
发明人： ENOKI MASAHIKO , SAKAMOTO TAKASHI , HAYASHI KUNIHISA
IPC分类号： B60R21/00 , B60W30/00 , G01S13/93
摘要： PURPOSE:To make it possible to discriminate the moving direction of an objective body, and to prevent a rear-end collision accident or a contact accident, by adding speed and direction discriminating function to the high frequency part of a simple CW Doppler radar. CONSTITUTION:The reflected waves egamma reflected from an objective vehicle 13 are received by an antenna 9 and respectively guided to mixer diodes 104, 105 through directionality couplers 101, 102. In the mixer diodes 104, 105, the reflected components and part of transmission waves are synthesized to be amplified by amplifiers 106, 107. When the transmission outputs IA, IB in the mixer diodes 104, 105 are set so as to be brought to the same phase and the distance of the directionality couplers 101, 102 is set so as to delay the phase egammaA of the received wave by pi/2 from egammaB, a Doppler beat signal is represented by a constant formula. When the objective vehicle 13 approaches to an automobile, IA is delayed by pi/2 from IB and, therefore, the approach of the objective vehicle 13 can be detected by monitoring this phase difference.

3. 发明专利

JPS6069574A RADAR EQUIPMENT FOR VEHICLE 失效
公开(公告)号：JPS6069574A
公开(公告)日：1985-04-20
申请号：JP17768783
申请日：1983-09-26
申请人： TOYOTA MOTOR CO LTD , FUJITSU TEN LTD
发明人： YAMATO NOBUTAKA , HAYASHI KUNIHISA , FUJITA YASUHIRO , ENOKI MASAHIKO
IPC分类号： G01S7/02 , G01S13/50 , G01S13/93
摘要： PURPOSE:To make the detection range constant from a vehicle which mounts a radar equipment to a target regardless of whether the target is large or small by reducing the vertical beam angle of a radar antenna and causing the beam of a transmit radio wave to produce an elevation on the whole. CONSTITUTION:When a vehicle 4 approaches a vehicle 14 which runs as shown by an arrow A from behind and enters the range of detection range L, a transmit wave radiated from the radar antenna 16 strikes the vehicle 4 and its reflected wave is received by the radar antenna 16 to be displayed on a display means. Then, the driver on the vehicle 14 knows that the following vehicle approaches and monitors the rear of the vehicle 14. The beam center 17 of the transmit wave is at a constant elevation angle theta2, so the approach is detected within nearly the same range of the detection range L regardless of whether the vehicle is large of small. Therefore, it is possible to detect the target approaching the vehicle 14 from behind within the range of the constant range, and the rear monitoring function of the radar device is improved to evade danger such as a collision securely.

4. 发明专利

JPS6047739A APPARATUS FOR WATCHING AND INDICATING OBSTACLE IN BACK AND SIDE AREA OF CAR 失效
公开(公告)号：JPS6047739A
公开(公告)日：1985-03-15
申请号：JP15530383
申请日：1983-08-25
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CO LTD
发明人： ENOKI MASAHIKO , HAYASHI KUNIHISA
IPC分类号： B60R21/00 , B60Q1/22 , B60Q1/26 , B60Q1/48 , B60Q11/00 , B60W30/00 , G01S13/93
摘要： PURPOSE:To obtain an excellent watching apparatus for obstacles at the back and side areas of a car in order to avoid a car accident by installing, indicators which indicate the obstacle detecting output from car-mounted sensors, whose watching ranges cover the back and side areas of the car, on or in the vicinity of a room mirror and side mirrors. CONSTITUTION:Indicators 44, 46, and 48 are formed by a lamp which lights when it detects an obstacke, an emission element such as an emission Diode, or an element like a liquid crystal which is characterized by its reflecting/transmitting characteristics for variable light. A wider area is provided over a mirror frame 52 in order to install the indicators 44, 46, and 48. The indicator 44 installed in the middle of a room mirror 50 indicates the output from a sensor 30, which keeps a lookout for the back area of a car body. The indicators 46 and 48, which are installed on the left and right sides of the room mirror 50 respectively, indicate the output from sensors 32 and 34, which keep a lookout for the left and right side areas of the rear part of the car. With this contrivance, a car driver is able to observe the output from the sensors 30, 32, and 34 for the back, the right, and left areas of the car by only glancing at the room mirror 50, and the can be free of a car accident through good observation of obstacles.

5. 发明专利

JPS60259917A LIGHT-RECEIVING CIRCUIT 失效
公开(公告)号：JPS60259917A
公开(公告)日：1985-12-23
申请号：JP11739684
申请日：1984-06-06
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CO LTD
发明人： FUJIMURA KEIJI , HAYASHI KUNIHISA
IPC分类号： G01J1/44
摘要： PURPOSE:To prevent saturation of a photo-diode convert a photo-signal to an electric signl accurately, by installing a wave detecting circuit commanding change inversely proportional to an amplifier output signal level of a terminal voltage of a resistance circuit network and a control means consisting of transistor Q, etc. CONSTITUTION:An increased light quantity of a photosignal causes a composite resistance drop of a parallel circuit consisting of resistances R2 and Q and also of drop of a voltage appearing on an output terminal OUT. Reversely, a decreased light quantity of the photosignal increases the composite resistance of the parallel circuit consisting of resistances R2, Q and a level of a signal appearing on the output terminal OUT is kept constant. Further, an increase of a photosignal incident to a photo-diode PD lowers the composite resistance of the parallel circuit acting as a load resistance of the photo-diode consisting of resistances R2 and Q, preventing saturating condition of the diode PD. This prevents deterioration of S/N by an increase of a dark current.

6. 发明专利

JPS58170104A ON-VEHICLE RADAR DEVICE 失效
公开(公告)号：JPS58170104A
公开(公告)日：1983-10-06
申请号：JP5193382
申请日：1982-03-30
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CO LTD
发明人： ISOGAI YASUHIRO , HAYASHI KUNIHISA
IPC分类号： H01Q1/32 , H01Q19/06
摘要： PURPOSE:To minimize the reflection or scattering of electric waves, by providing a front panel of a dielectric material at the front of a radar antenna with a specific value of width and thickness of the front panel. CONSTITUTION:The non-reflection conditions of a front panel 1 are obtained from the following equations with a distance (h) between the width (w) of a radar antenna 2 and the plate 1. That is, W=w+2h.tanphi and t=n.lambda/2(sgamma- sin theta)1/2 in terms of the relation between the width W and thickness (t) of the panel 1. In this case, phi>=thetah is satisfied, where thetah is the beam width of (electric power half value width) of the radar antenna, h.tanphi=u, theta is an incident angle of electric wave to the panel 1, lambda is the free space wavelength of the using frequency, Sgamma is the specific dielectric constant, and (n) is an integer respectively. The material, thickness, etc. can be set freely for a front grille 3.

7. 发明专利

JPS61112983A Laser range finder mounted on vehicle 失效
标题翻译：激光雷达探测器安装在车上
公开(公告)号：JPS61112983A
公开(公告)日：1986-05-30
申请号：JP23473184
申请日：1984-11-07
申请人： Fujitsu Ten Ltd , Toyota Motor Corp
发明人： KAJIOKA HIDEKI , FUJIMURA KEIJI , SAKAMOTO TAKASHI , HAYASHI KUNIHISA
IPC分类号： G01S7/48 , G01C3/00 , G01C3/02 , G01C3/06 , G01S17/08 , G01S17/93
摘要： PURPOSE: To prevent the stoppage of laser beam based on the judgement of the stoppage of a vehicle in a dangerous state at the time of the locking of a tire, by adding a tire lock detection circuit to a laser range finder mounted to a vehicle.
CONSTITUTION: An axle rotating pulse (a) disappears [chart (a)] because the rotation of an axle is stopped at the times of the stoppage of a vehicle and the locking of a tire. A differentiation circuit 6 detects the rising in the output (b) of a f/v converter 41 to make it possible to know the starting of the locking of the tire [chart (c)]. A peak detection circuit 7 has time constant C
2 R
2 and gradually increases output (d) [chart (d)] and a tire lock detection comparator 8 detects the change in this output (d) as a threshold value REF
2 and brings output (e) to a low level only during a period (t
1 ) of d 2 [chart (e)]. A stoppage discrimination comparator 42 immediately brings output (f) to a high level when input (b) is lowered to a threshold value REF
1 or less and shows the stoppage of the vehicle but the output (f) can not pass a gate 9 because this time t
2 is shorter than the time t
1 and the effect (shown by the broken line) due to the locking of the tire does not appear in the output (g) to a laser transmitter [chart (g)].
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过将轮胎锁定检测电路添加到安装在车辆上的激光测距装置，根据在轮胎锁定时处于危险状态的车辆的停止判断来防止激光束的停止。构成：轴转动脉冲（a）消失[图（a）]，因为在停车和轮胎锁定时轴的旋转停止。微分电路6检测f / v转换器41的输出（b）中的上升，使得可以知道轮胎的锁定开始[图（c）]。峰值检测电路7具有时间常数C2R2并逐渐增加输出（d）[chart（d）]，并且轮胎锁定检测比较器8将该输出（d）的变化检测为阈值REF2，并将输出（e）仅在d

8. 发明专利

JPH0378076A SIMULATOR EQUIPMENT 失效
公开(公告)号：JPH0378076A
公开(公告)日：1991-04-03
申请号：JP21539089
申请日：1989-08-21
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CORP
发明人： HASHIMOTO YOSHIKAZU , HAYASHI KUNIHISA , TADA TETSUYA
IPC分类号： B60T8/17 , B60T8/00 , B60T8/172 , B60T8/88 , G05B23/02 , G06F19/00
摘要： PURPOSE:To efficiently execute simulation for various controllers each different in efficiency by respectively setting arithmetic processing to be executed for the controller subject to inspection while dividing the processing into plural arithmetic processing means. CONSTITUTION:For the processors 21 to which arithmetic programs are allocated, a host processor 11 selects the processor 21 to be operated corresponding to a controller 2 as the object of the simulation. Then, only the selected processor 21 is operated and signal processing is executed for each processor 21 while mutually executing communication. Afterwards, a pseudo signal is generated and outputted to the controller 2. The controller 2 executes the arithmetic processing based on the pseudo signal and outputs a control signal and in the host processor 11, the control signal is analyzed and inspected. Accordingly, the simulation can be efficiently executed to the various controllers 2 each different in efficiency by one simulator 1.

9. 发明专利

JPH0459181B2 失效
公开(公告)号：JPH0459181B2
公开(公告)日：1992-09-21
申请号：JP15530383
申请日：1983-08-25
申请人： FUJITSU TEN LTD
发明人： ENOKI MASAHIKO , HAYASHI KUNIHISA
IPC分类号： B60R21/00 , B60Q1/22 , B60Q1/26 , B60Q1/48 , B60Q11/00 , B60W30/00 , G01S13/93

10. 发明专利

JPS61191913A ONBOARD DISTANCE MEASURING APPARATUS FOR VEHICLE 失效
公开(公告)号：JPS61191913A
公开(公告)日：1986-08-26
申请号：JP3249685
申请日：1985-02-20
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CORP
发明人： FUJIMURA KEIJI , HAYASHI KUNIHISA
IPC分类号： G01S17/87 , G01C3/00 , G01C3/06
摘要： PURPOSE:To enable highly accurate measurement of distance from long to short range, by arranging a laser distance measuring device, a proximity sensor, a running state detector and a control means for switching a selection means over to the laser distance measuring device. CONSTITUTION:A proximity sensor 11 is provided outside a laser distance measuring device 10. A running state detector 13 is provided to detect that an automobile stops or almost stops and the sending of a laser light from the distance measuring device 10 is controlled by a control means 14 into which the detection signal of the detector and an object detection signal of the sensor 11 are inputted. On the other hand, a switch 12 does a changeover between the output of the distance measuring device 10 and the detection distance output of the sensor 11. In other words, the control means 14 halts the sending of a laser light from the distance measuring device 10 only when the automobile stops or almost stops while an object is detected with the sensor 11 while changes the switch 12 over to the sensor 11 position to perform a measurement of the shortest range. To measure long range, the distance measuring device 10 is actuated and the switch 12 is changed over to the position of the measuring device 10. This enables highly accurate distance measuring from long to the shortest range.

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