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21. 发明专利

JPH11141369A IDLE SPEED CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11141369A
公开(公告)日：1999-05-25
申请号：JP30293697
申请日：1997-11-05
申请人： TOYOTA MOTOR CORP
发明人： NAKATOMI TAKAYOSHI
IPC分类号： F02D29/04 , F02D41/16
摘要： PROBLEM TO BE SOLVED: To reduce the fluctuation width of engine speed when a compressor for an air-conditioner is brought into ON/OFF during idle of an internal combustion engine. SOLUTION: An ECU 15 calculates the magnitude of the load of an air- conditioner from the ON time and the OFF time of a compressor 52 for an air-compressor and based on the magnitude of the load of the air-conditioner, an ON delay time t1 and an OFF delay time t2 are read from a map. When, during idle of an internal combustion engine 1, the compressor 52 is operated, the compressor 52 is operated after a lapse of the ON delay time t1 corresponding to the magnitude of the load of the air-conditioner and starting from the start of control of the idle speed such that engine speed is adjusted to second target idle engine speed NI2 . In a stop of the compressor 52, the compressor 52 is stopped after a lapse of an OFF delay time t2 corresponding to the magnitude of the load of the air-conditioner and starting from the start of idle speed control such that the engine speed is adjusted to first target idle speed NI1 .

22. 发明专利

JPH04183943A ACCELERATION SLIP CONTROL DEVICE 失效
公开(公告)号：JPH04183943A
公开(公告)日：1992-06-30
申请号：JP31165990
申请日：1990-11-19
申请人： TOYOTA MOTOR CORP
发明人： UCHIDA KIYOYUKI , NAKATOMI TAKAYOSHI , IGATA HIROSHI , YAGI YOSHIFUMI
IPC分类号： F02D45/00 , B60R16/02 , F02D29/02 , F02D41/04 , G01N19/02
摘要： PURPOSE:To prevent control by means of value of mu different from an actual road surface condition by calculating friction coefficient of the road surface from vehicle acceleration, and prohibiting the use of the calculated friction coefficient of the road surface for control while travelling on a sloping road in the case of carrying out slip control according to its magnitude. CONSTITUTION:An acceleration slip control device has a slip detecting means A to detect slip volume of a driving wheel, and also has a friction coefficient renewing means C. The friction coefficient renewing means C calculates friction coefficient muof the road surface by using vehicle acceleration detected by means of an acceleration detecting means B, vehicle weight W and a driving wheel load Wr, and in the case the calculated friction coefficient is different from the value mu using at present for control, it inputs new value mu obtained by renewing the value mu to a control means D. The control means D carries out driving torque control according to the renewed value mu and the slip volume. In this case, a sloping road detecting means E to detect sloping road travel is arranged, and when the fact that the vehicle is now travelling on a sloping road is detected, renewal of the friction coefficient of the road surface by means of the friction coefficient renewing means C is prohibited by means of a prohibiting means F.

23. 发明专利

JPH04179838A ACCELERATION SLIP CONTROL APPARATUS 失效
公开(公告)号：JPH04179838A
公开(公告)日：1992-06-26
申请号：JP30609090
申请日：1990-11-14
申请人： TOYOTA MOTOR CORP
发明人： YAGI YOSHIFUMI , NAKATOMI TAKAYOSHI , UCHIDA KIYOYUKI , IGATA HIROSHI
IPC分类号： F02D9/02 , B60K28/16 , F02D11/10 , F02D29/02 , F02D45/00
摘要： PURPOSE:To enable obtaining a suitable degree of acceleration even in an uneven road or the like, by setting a drive torque increase percentage in a case where a change in slip quantity tends to decay to a value larger than a drive torque decrease percentage in a case where said change tends to increase. CONSTITUTION:Drive torque control for an engine 10 subjected to acceleration slip control is performed by setting the degree of opening of a sub-throttle valve 16 by operation of a TRC unit 50 in corresponding relation to the slip degrees of drive wheels 3a, 3b. Note here that the TRC unit 50 determines a rate of change of the drive torque by using the degree of slip of the drive wheels 3a, 3b and the amount of change thereof. At this time, the gain of a control portion proportionate to a change in the degree of slip is set depending upon whether this change is on the increase side or on the decrease. When the change in slip amount is on the decrease side, a larger gain than on the increase side is set. This enables obtaining a good degree of acceleration at the time of acceleration slip control, even in an uneven road or the like where the rate of change in slip amount is greatly fluctuated.

24. 发明专利

JPH0439132A VEHICLE WITH AUTOMATIC TRANSMISSION HAVING ACCELERATION SLIP CONTROL DEVICE 失效
公开(公告)号：JPH0439132A
公开(公告)日：1992-02-10
申请号：JP14541790
申请日：1990-06-05
申请人： TOYOTA MOTOR CORP
发明人： MIYAZAKI YUJI , NAKATOMI TAKAYOSHI
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , F02D29/02 , F16H59/24 , F16H59/66 , F16H61/00 , F16H61/02 , F16H63/40 , F16H63/50
摘要： PURPOSE:To prevent hunting near the completion of traction control and perform smooth traction control by correcting the opening target value calculated by a target value calculating means not to exceed the threshold value calculated by a threshold value calculating means when a slip of driving wheels occurs. CONSTITUTION:A target value calculating means B calculates the opening target value of a throttle means A to suppress the occurrence of a slip, and a driving means C controls a throttle means A. A threshold value calculating means D calculates the opening threshold value of the throttle means A performing shift-down, and an opening detecting means E detects the opening of the throttle means A. A shift-down condition judging means F judges the shift-down condition via the comparison between the opening threshold value of the throttle means A calculated by the threshold value calculating means D and the opening of the throttle means A detected by the opening detecting means E. A target value correcting means H corrects the opening target value calculated by the target value calculating means B not to exceed the threshold value calculated by the threshold value calculating means D. Shift-down control is suppressed when traction control is started.

25. 发明专利

JPH03179139A SLIP CONTROLLER FOR VEHICLE 失效
公开(公告)号：JPH03179139A
公开(公告)日：1991-08-05
申请号：JP31541589
申请日：1989-12-06
申请人： TOYOTA MOTOR CORP
发明人： NAKATOMI TAKAYOSHI
IPC分类号： F02D45/00 , F02D29/02
摘要： PURPOSE:To secure optimum engine speed and accelerating performance by performing feedback control on the basis of the engine speed so as to make the opening of a throttle valve securable at the specified speed ratio with a torque converter at a time when an initial slip has been settled. CONSTITUTION:An output shaft of an internal combustion engine 10 is connected to a driving wheel 34 via an automatic transmission 28. In this case, when an accelerating slip is detected by a means A on the basis of each speed of the driving wheel 34 and a driven wheel 36 of a vehicle, a first control signal is formed by a means B so as to solve the slip according to the progress of acceleration. In addition, in order to secure a specified reduction gear ratio in the front and in the rear of the automatic transmission 28, a second control signal is formed by a means D on the basis of engine speed detected by a means C. Moreover, when a vehicle running state in the vicinity where an initial slip at time of acceleration starting is settled is discriminated by a means E, it is selected to the second control signal from the first control signal by a means F, whereby an actuator 24 driving a throttle valve 12 is controlled.

26. 发明专利

JPS6168533A Detection of max. combustion pressure generation timing for internal combustion engine 失效
标题翻译：检测最大值用于内燃机的燃烧压力发生时间
公开(公告)号：JPS6168533A
公开(公告)日：1986-04-08
申请号：JP19109484
申请日：1984-09-12
申请人： Toyota Motor Corp
发明人： NAKATOMI TAKAYOSHI
IPC分类号： G01M15/04 , F02P5/145 , F02P17/04 , G01L23/30 , G01M15/08
CPC分类号： G01M15/08 , F02P5/1455 , Y02T10/46
摘要： PURPOSE:To detect the max. combustion pressure generation timing, by checking the max. combustion pressure at a fixed cycle of an internal combustion engine and a pressure at the crank angle pitch before and after it to determine a proximate function of the combustion pressure with respect to the crank angle. CONSTITUTION:A combustion pressure sensor 3 and an ignition plug are provided at the top of a combustion chamber 2 of a cylinder 1 of an internal combustion engine and a distributor 6 and a crank angle sensor 7 are provided on a crank shaft connected to a piston 5. A combustion pressure detecting section 22 takes in a combustion pressure Pi from the sensor 3 synchronizing and corresponding to an angle thetai of crank inputted into an angle of crank detector section 21 to be memorized into a memory. A max. combustion pressure generation timing computing section 23 takes in the combustion pressure Pi from the detecting section 22 to retrieve the max. value PK while approximating changes in the combustion pressure P based on the detection values PK-1 and PK+1 before and after it in terms of function. The angle thetapmax of crank is determined corresponding to the max. value Pmax of the approximate function thus obtained is determined to be outputted to an ignition timing controller 30.
摘要翻译：目的：检测最大燃烧压力产生时间，通过检查最大在内燃机的固定循环下的燃烧压力和在其之前和之后的曲轴角度间距处的压力，以确定相对于曲柄角度的燃烧压力的接近功能。构成：燃烧压力传感器3和火花塞设置在内燃机的气缸1的燃烧室2的顶部，分配器6和曲柄角传感器7设置在与活塞连接的曲轴上燃烧压力检测部分22接收来自传感器3的燃烧压力Pi，该燃烧压力Pi同步并对应于输入到曲柄检测器部分21的角度的曲柄角度，以被存储到存储器中。最大燃烧压力产生定时计算部23从检测部22取出燃烧压力Pi，在基于功能的前后的检测值PK-1和PK + 1近似燃烧压力P的变化的值PK。确定曲柄角度最大值对应最大值。确定由此获得的近似函数的值Pmax被输出到点火正时控制器30。

27. 发明专利

JPS5928031A Electronic fuel injection controlling method for internal combustion engine 失效
标题翻译：用于内燃机的电子燃油喷射控制方法
公开(公告)号：JPS5928031A
公开(公告)日：1984-02-14
申请号：JP13811682
申请日：1982-08-09
申请人： Toyota Motor Corp
发明人： NAKATOMI TAKAYOSHI
IPC分类号： F02D41/34 , F02D31/00
CPC分类号： F02D31/003
摘要： PURPOSE:To make it possible to secure the accuracy of air-fuel ratio control by a method wherein in the method for determining the actual amount of fuel injection on the base of the basic amount of fuel injection obtained from the opening degree of a throttle valve and the rotational velocity of an engine is controlled by changing the fully closing position of the throttle valve. CONSTITUTION:An electronic fuel injection controlling device operates such that in ECU40 the basic fuel injection time obtained from the outputs of a throttle sensor 22 and a crank angle sensor 36 is corrected by the oututs of a sucked air temperature sensor 16 and an O2 sensor 32 and an injector 28 is controlled on the base of the actual fuel injection time as corrected. In this case, an idle-up device 42 adopted to change the fully closing position of the throttle valve 20 in proportion to the temperature of cooling water. The device 42 causes a stopper 78 to rotate clockwise through the action of a return spring 80 at the time of cooling the engine to thereby regulate the fully closing position of the valve 20 toward the opening side of the valve while when the heating of the engine is finished, it causes the stopper 78 to rotate against the force of the spring 80 through the expansion of a thermo-wax so as to set the fully closing position of the throttle valve at the usual closing position.
摘要翻译：目的：为了确保空燃比控制的精度，可以通过以下方法来确保空燃比控制的精度：在基于从节气门开度获得的基本燃料喷射量的基础上确定实际燃料喷射量的方法通过改变节流阀的完全关闭位置来控制发动机的转速。构成：电子燃料喷射控制装置的操作使得在ECU40中，通过吸入空气温度传感器16和O2传感器32的输出来校正从节流传感器22和曲柄角传感器36的输出获得的基本燃料喷射时间并且在校正的实际燃料喷射时间的基础上控制喷射器28。在这种情况下，空转装置42被采用以与冷却水的温度成比例地改变节气门20的完全关闭位置。装置42在冷却发动机时使止动件78顺时针旋转，从而调节阀20朝向阀的开口侧的完全关闭位置，同时当发动机的加热完成后，通过热蜡的膨胀使止动件78抵抗弹簧80的力旋转，从而将节流阀的完全关闭位置设定在通常的关闭位置。

28. 发明专利

JPS5726230A Electronic control type fuel injection method 失效
标题翻译：电子控制型燃油喷射方法
公开(公告)号：JPS5726230A
公开(公告)日：1982-02-12
申请号：JP10109280
申请日：1980-07-25
申请人： Toyota Motor Corp
发明人： NAKATOMI TAKAYOSHI
IPC分类号： F02D41/04 , F02D41/26 , F02D41/32
CPC分类号： F02D41/32 , F02D41/26
摘要： PURPOSE: To especially improve a response during transient time and control exhaust of HC, etc. even when there are the response lag by sensors and the time difference between the operation time and the request time by obtaining a fuel injection method which properly calculates the fuel that is actually required by an engine.
CONSTITUTION: An electronic control type fuel injector synchronizes with the signal from a crank angle sensor 23 in an electronic control circuit section 15, calculates the fuel injection based on each input signal from a throttle sensor 16, water temperature sensor 18, and intake pipe pressure sensor 19, and controls the opening of a fuel injection valve 28. In this case, a correction value C
n is obtained from the following equation and the operation of this time fuel injection is executed.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了特别提高瞬态时间的响应并控制HC等的排气，即使通过传感器有响应滞后以及操作时间与请求时间之间的时间差，通过获得正确计算燃料的燃料喷射方法实际上是引擎需要的。构成：电子控制型燃料喷射器与电子控制电路部分15中的曲柄角传感器23的信号同步，基于来自节流传感器16，水温传感器18和进气管压力的每个输入信号计算燃料喷射传感器19，并且控制燃料喷射阀28的打开。在这种情况下，从以下等式获得校正值Cn，并且执行该时间燃料喷射的操作。

29. 发明专利

JPH0381543A EMERGENT DECREASE METHOD FOR ENGINE OUTPUT OF VEHICLE 失效
公开(公告)号：JPH0381543A
公开(公告)日：1991-04-05
申请号：JP21708289
申请日：1989-08-23
申请人： TOYOTA MOTOR CORP
发明人： TADA TETSUYA , NAKATOMI TAKAYOSHI , MIYAZAKI YUJI , HAYASHI KUNIHISA
IPC分类号： F02D41/04 , F02D29/02 , F02D43/00
摘要： PURPOSE:To prevent application of overvoltage on a spark ignition device by providing a cut-off means of fuel supply to an engine for emergently decreasing engine output, and providing a throttle opening decreasing means with an electronic device actuated prior to fuel cut. CONSTITUTION:An intake passage 30 is provided with a main throttle valve 36 opened or closed according to a step-in quantity of an accel pedal 38, and a sub-throttle valve 42 controlled to open or close with an electronic control device 46. A fuel injector 34 has its valve opening timing and valve opening duration controlled by a control signal from a fuel injection control device 40, basically controlled according to an intake air quantity. When fuel supply is cut off for emergent decrease of engine output, the throttle opening of the valve 42 is automatically decreased with the control device 46 prior to fuel cut, and hereafter fuel is cut. Therefore, after air pressure in the engine cylinder largely decreases, fuel is cut off, and voltage rise generated in a spark ignition device is cancelled.

30. 发明专利

JPH02286842A CONTROL DEVICE FOR ACCELERATIVE SLIP OF CAR 失效
公开(公告)号：JPH02286842A
公开(公告)日：1990-11-27
申请号：JP10852589
申请日：1989-04-27
申请人： TOYOTA MOTOR CORP
发明人： NAKATOMI TAKAYOSHI
IPC分类号： B60W10/04 , B60K28/16 , B60T8/58 , B60W10/00 , B60W10/06 , B60W10/18 , B60W10/184 , F02D29/02 , F02D41/04
摘要： PURPOSE:To secure good accelerating performance by distinguishing the condition of road surface according to its friction coefficient from the slip amount of each drive wheel and the acceleration of the car, and by changing the amount of control if this distinctional value has varied when the accelerative slip control is implemented. CONSTITUTION:A calculating means M3 calculates the slip amount of each drive wheel M1 from a signal given by a drive wheel speed sensing means M2. When this amount of slippage has exceeded the specified value, a sensing means M4 senses it as accelerative slip. On the basis of this result of sensing an accelerative slip control means M5 emits a determined control amount, so as to suppress the accelerative slippage of the drive wheel M1. Therein a road surface condition distinguishing means M7 distinguishes road conditions classified according to the friction factor of the current road surface from the slip amount calculated by the calculating means M3 and the car acceleration sensed by a sensing means M6, and when a judging means M8 judges that this distinctional value has varies during accelerative slip control, an altering means M9 alters the control amount of the accelerative slip control means M5. Thus the accelerating characteristics can be held good.

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