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1. 发明专利

JPH0674057A CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JPH0674057A
公开(公告)日：1994-03-15
申请号：JP22867592
申请日：1992-08-27
申请人： MAZDA MOTOR
发明人： NOGUCHI NAOYUKI , ONOSE TAKASHI , MITSUI SHIYUUJI
IPC分类号： F02B53/06 , F02B53/10
摘要： PURPOSE:To prevent any deviation of a fuel injection amount owing to lowering of an intake air negative pressure when an on-off valve is opened and to prevent the dry deviation of a fuel injection amount owing to the operation delay of the on-off valve, in an engine provided with a D-jet port system electronic control fuel device and an on-off valve to open and close an intake air delay close port for reducing any pumping loss. CONSTITUTION:A control device for an engine comprises an on-off valve target opening computing circuit 34, a first correcting circuit 37 to correct a fuel injection amount based on the target opening of an on-off valve, a means to detect the actual opening of the on-off valve, a circuit 38 to compare the target opening of the on-off valve with the actual opening; and a second correcting circuit 39 to further correct a fuel injection amount based on comparison by the comparing circuit 38.

2. 发明专利

JPH05180029A INTAKE DEVICE FOR ENGINE 失效
公开(公告)号：JPH05180029A
公开(公告)日：1993-07-20
申请号：JP34655591
申请日：1991-12-27
申请人： MAZDA MOTOR
发明人： MITSUI SHIYUUJI , TAJIMA SEIJI , SASAKI HIROSHI , NIITANI TOORU
IPC分类号： F02D29/02 , F02M69/00
摘要： PURPOSE:To obtain a high traction effect by providing an intake air flow rate changing means in an engine in which two throttle valves are disposed in series in an intake passage, and controlling this means in accordance with an opening degree of one of the throttle valves which is associated with the operation of an accelerator pedal. CONSTITUTION:In an engine incorporating an intake device in which a first throttle valve 17 opened and closed in association with the operation of an accelerator pedal 6 and a second throttle valve 13 opened and closed independent from the first throttle valve 17 are disposed in series in an intake passage 9, a bypass passage 20 bypassing the first throttle valve 17 (or the second throttle valve 13) is provided, and an intake air flow rate changing means 20 for changing the flow rate of intake air, in the passage 20. A control means 43 controls the changing means 21 in accordance with an output from a throttle opening degree detecting means 34 for detecting an opening degree of the first throttle valve 17. Thereby it is possible to compensate the flow rate of intake air for an insufficiency thereof even though interference of the intake air flow rate is present when the opening degrees of the throttle valves are small.

3. 发明专利

JPH0348743A FAULT DIAGNOSTIC DEVICE FOR VEHICLE 失效
公开(公告)号：JPH0348743A
公开(公告)日：1991-03-01
申请号：JP18369189
申请日：1989-07-18
申请人： MAZDA MOTOR
发明人： KAWAZOE SATORU , HIRANO HARUHIRO , MITSUI SHIYUUJI
IPC分类号： G01M17/007 , G01M15/00 , G01M15/04 , G01M17/00
摘要： PURPOSE:To preclude misrecognition in a fault diagnosis under the inhibition state of an actuator by providing a detecting means for the control inhibition state of electronic control systems by a control unit and a means which indicates the detection result on a tester side. CONSTITUTION:This device is equipped with the control inhibition state detecting means for the on-vehicle electronic control systems 61 - 6X by the control unit ECU 2 and the means which indicates the detection result on the side of the tester 1. Then when the control inhibition state of actuators 61 - 6X is stored on a memory 20 and an operation/stop control command is sent out, it is retrieved and confirmed whether the command is ON or not. Judging means 10 or/and 21 judge whether the control is inhibited or not from the detection result of a sensor 5. When a test signal 11 is sent to the ECU, the memory 20 is retrieved and when the control is inhibited, the signal is sent back to the tester 1. When the control is not inhibited, on the other hand, the actuators are operated and controlled. Consequently, the control inhibition state of the actuators are also detected and it is decided whether a control disabled state is caused by the fault of the control system side or the control inhibition state, thereby precluding the misrecognition.

4. 发明专利

JPH0268215A AIR-CONDITIONING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH0268215A
公开(公告)日：1990-03-07
申请号：JP22034388
申请日：1988-09-05
申请人： DIESEL KIKI CO , MAZDA MOTOR
发明人： SAKURAI YOSHIHIKO , DOI SHIGENORI , MITSUI SHIYUUJI , NOGUCHI NAOYUKI
IPC分类号： B60H1/32
摘要： PURPOSE:To suppress and lower the variation of the engine rotation frequency even when the capacity of a variable capacity compressor is converted, by composing the system to convert the current flow to a solenoid in a specific inclination depending on the discharge capacity directed by a conversion directing device. CONSTITUTION:When the discharge capacity of a variable capacity compressor 1 is directed to convert to a different amount by a conversion directing device 2, the conversion direction is discriminated by a discriminating device 3. And when the discharge capacity of the variable capacity compressor 1 is converted depending on the discriminated result, the current flow to a solenoid 1-1 is converted to the discharge capacity directed by the conversion directing device 2 by a control device 4 in a specific inclination. As a result, the discharge capacity is converted slowly in a specific inclination. Consequently, a sudden variation of the variable capacity compressor load to the engine can be avoided, and no large influence is given to the engine rotation frequency.

5. 发明专利

JPH01167439A CONTROLLER FOR ENGINE 失效
公开(公告)号：JPH01167439A
公开(公告)日：1989-07-03
申请号：JP32616487
申请日：1987-12-23
申请人： MAZDA MOTOR
发明人： WAKI KOICHIRO , MITSUI SHIYUUJI , HARADA YASUHIRO
IPC分类号： F02D41/22 , F02D9/02 , F02D41/00
摘要： PURPOSE:To secure safety without giving an influence to the ordinary operation by putting an output adjusting device to the state having the min. engine output is realized, by an electric circuit independently of a control means, when an accelerator is put into inoperative state. CONSTITUTION:When the first and/or second brake switch 74 or 75 is turned-ON by the stepping-ON of a brake pedal, the voltage higher than a ground voltage is applied onto the base of a semiconductor switch 71, in a motor control circuit 70. When feet is separated from an accelerating pedal 5 and an accelerator perfect closing switch 72 is turned-ON in this state, no electric current flows in the motor 49 of an electric control mechanism 60, and a throttle valve 6 is compulsorily set into a perfect closed state by a spring 45. In this control disabled state or anomaly, the perfect closed state is generated compulsorily by the operation of a driver, and when the engine revolution speed lowers, a control unit 18 turns OFF an electromagnetic clutch 50, and switching to a mechanical control mechanism 61 is performed. Therefore, safety can be secured without giving an influence to the ordinary operation.

6. 发明专利

JPS6158935A Secondary air supply device of supercharged engine 失效
标题翻译：超级发动机二次空气供应装置
公开(公告)号：JPS6158935A
公开(公告)日：1986-03-26
申请号：JP18124484
申请日：1984-08-30
申请人： Mazda Motor Corp
发明人： OKIMOTO HARUO , MITSUI SHIYUUJI , EBINO HIROSHI
IPC分类号： F02D41/18 , F01N3/22 , F01N3/30 , F02B33/00 , F02B33/44 , F02B37/16 , F02D3/00 , F02D23/00 , F02D41/00 , F02D41/04 , F02D41/22 , F02D41/34
CPC分类号： F01N3/222 , F01N3/22 , F01N3/227 , F01N3/30 , F01N2550/14 , F02B33/446 , F02B37/16 , Y02A50/2322 , Y02T10/144 , Y02T10/20
摘要： PURPOSE: To inject fuel under the proper control by reducing the quantity of secondary air and controlling quantity of fuel which is to be injected in accordance with the full quantity of sucked air when a secondary air quantitative sensor fails to operate properly.
CONSTITUTION: A primary air quantity sensor 18 is disposed in an intake passage 12 and a secondary air quantity sensor 19 is disposed in a secondary air supply passage 16. When a failure of the secondary air quantity sensor 19 is detected, a quantity reduction device 22 is operated to reduce the quantity of secondary air (a) and a control changing means 25 is also operated to control fuel injection in accordance with the output signal from the primary air quantity sensor 19. Fuel can therefore be injected properly under the quantitative control.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：当二次空气定量传感器无法正常工作时，通过减少二次空气的量和根据全部吸入空气喷射的燃料量来控制燃油。构成：一次空气量传感器18设置在进气通道12中，二次空气量传感器19设置在二次空气供给通道16中。当检测到二次空气量传感器19的故障时，减少量装置22 被操作以减少二次空气量（a），并且控制改变装置25也被操作以根据来自一次空气量传感器19的输出信号来控制燃料喷射。因此，可以在定量控制下适当地注入燃料。

7. 发明专利

JPH03172556A IDLING SPEED CONTROLLER FOR ENGINE 失效
公开(公告)号：JPH03172556A
公开(公告)日：1991-07-25
申请号：JP31241889
申请日：1989-11-30
申请人： MAZDA MOTOR
发明人： MITSUI SHIYUUJI , YAYOSHI SADAHIKO , ARINO KAZUFUMI
IPC分类号： F02D41/16 , F02D45/00
摘要： PURPOSE:To improve the extent of responsiveness to control over a desired engine speed by making an arithmetic process for controlling an idling speed so as to be performed with a shorter setting cycle than the normal one at a transition period of load increase sor a while till the setting time elapses since the external load of an engine has started its operation. CONSTITUTION:In a device which regulates an idling speed after controlling a duty solenoid valve 11 in a bypass passage 10 installed so s to bypass a throttle valve 7 in an intake passage 5 by a speed regulating means 27, there is provided with a first operational means 25 which performs an arithmetic process for controlling the idling speed at each setting cycle. In addition, there is provided with a second operational means 26 which performs the arithmetic process for controlling the idling speed at a relatively setting cycle at an interval of setting time from starting the operation when an operating state of external load being imposed on an engine is detected. With this constitution, at this interval of the setting time since the external load has started its operation, the speed regulating means 27 is controlled by output of the second operational means 26, but at time of other cases, this regulating means 27 is controlled on the basis of output of the first operational means 25.

8. 发明专利

JPH0388919A ENGINE SUPERCHARGE PRESSURE CONTROL DEVICE 失效
公开(公告)号：JPH0388919A
公开(公告)日：1991-04-15
申请号：JP22791389
申请日：1989-08-31
申请人： MAZDA MOTOR
发明人： ARINO KAZUFUMI , MITSUI SHIYUUJI , WAKI KOICHIRO
IPC分类号： F02B37/18 , F02B37/12 , F02B39/16
摘要： PURPOSE:To restrict the overshoot amount of the supercharge pressure within an allowable range and suppress torque variation effectively by resuming feedback control of the supercharge pressure so that the overshoot amount of supercharge pressure lies within the allowable range. CONSTITUTION:A controller 30 prohibits the feedback control of supercharge pressure when it is sensed that the engine 1 is in accelerating from the degree of opening of a throttle valve and its rate of change, and adds the acceleration correcting value to the fundamental duty ratio of a duty solenoid valve 21. The acceleration correcting value is decreased gradually when the actual supercharge pressure sensed by a neg. pressure sensor 27 attains a value lower by a set value alpha than the target supercharge pressure, and the feedback control of the supercharge pressure is resumed. Therein update and correction is made so that the set value alpha enlarges when the cumulated value of the overshoot amount of the actual supercharge pressure goes out of specified allowable range. Thereby the actual supercharge pressure for resuming the feedback control of the supercharge pressure becomes low point of time correspondingly, so that the overshoot amount will lie within the specified allowable range.

9. 发明专利

JPH0335141A TROUBLE DIAGNOSTIC DEVICE FOR VEHICLE 失效
公开(公告)号：JPH0335141A
公开(公告)日：1991-02-15
申请号：JP17062389
申请日：1989-06-30
申请人： MAZDA MOTOR
发明人： HIRANO HARUHIRO , KAWAZOE SATORU , HIROZAWA MANABU , MITSUI SHIYUUJI , ISEI MASAAKI
IPC分类号： G01M17/007 , G01M17/00
摘要： PURPOSE:To evade the emergency state of a side to be diagnosed which is generated by a diagnostic command and to protect the side to be diagnosed by providing a detecting means for a variation quantity varying through the operation of an on-vehicle electronic control system and a canceling means for control system. CONSTITUTION:The trouble diagnostic device is constituted by connecting a tester 1 which sends a test signal for diagnosing the trouble of the on-vehicle electronic control system 6 to a control unit (engine control unit 2). This device is equipped with the detecting means 5 which detects the variation quantity (e.g. exhaust air temperature) varying through the operation of the on-vehicle electronic control system 6 (injector 60 and igniter 61) and the canceling means which cancels the operation of the on-vehicle electronic control system 6 based upon the test signal when the variation quantity exceeds a permissible value. Then the detecting means 5 is realized by using a catasensor 50. Further, the canceling means is realized by the software program of a computer constituting the tester 1 or control unit 2.

10. 发明专利

JPH02203066A CONTROL DEVICE FOR VEHICLE WITH AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH02203066A
公开(公告)日：1990-08-13
申请号：JP2164489
申请日：1989-01-31
申请人： MAZDA MOTOR
发明人： MITSUI SHIYUUJI
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F16H59/14 , F16H59/16 , F16H59/22 , F16H59/24 , F16H59/26 , F16H59/38 , F16H59/42 , F16H59/44 , F16H59/54 , F16H59/64 , F16H59/70 , F16H59/78 , F16H61/06 , F16H61/10 , F16H63/40 , F16H63/50 , B60K41/10
摘要： PURPOSE:To improve durability of each friction element in an automatic transmission by decreasing a line pressure, adjusted by a line pressure adjusting means, after an engine is confirmed to execute a change of its generation torque in a speed change process of the automatic transmission. CONSTITUTION:When an automatic transmission is in its up or down shift, in principle while the action of speed change is performed, reduction of a speed change shock is contrive by changing ignition timing and generation torque of an engine. When execution is confirmed of changing the generation torque by a torque change confirming means from change of a turbine speed in a torque converter, a line pressure control means controls a line pressure adjusting means, consisting of a duty solenoid valve or the like, decreasing a line pressure. While in a speed change in coil time with the change not preferable of the generation torque, the speed change is controlled by a relatively high line pressure. In this way, durability can be ensured of a friction element in the automatic transmission.

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