公开(公告)号：JP2001164970A

公开(公告)日：2001-06-19

申请号：JP34592899

申请日：1999-12-06

Applicant: TOYOTA MOTOR CORP ,  DAIHATSU MOTOR CO LTD

Inventor： SUZUKI NAOTO ,  TAKAOKA TOSHIBUMI ,  SUZUKI TAKASHI ,  OKADA HIROFUMI

IPC: F02D43/00 ,  B60K6/20 ,  B60K6/445 ,  B60W10/06 ,  B60W10/26 ,  B60W20/00 ,  F01L9/04 ,  F02D13/02 ,  F02D13/04 ,  F02D29/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/12 ,  F02D45/00 ,  F02M69/28

Abstract: PROBLEM TO BE SOLVED: To reduce pumping loss of an engine during cutting fuel and to prevent fall of catalyst temperature in an exhaust system. SOLUTION: Catalyst temperature Tca during cutting fuel is sensed. When the catalyst temperature Tca exceeds a specified value Tca1, an opening TA of a throttle valve is increased to an opening TAop of almost full open to increase an intake air amount to reduce pumping loss (step 206). When the catalyst temperature Tca is the specified value Tca1 or below, the opening TA of the throttle valve is a value TAc1 which indicates almost full close. It is thus possible to prevent excessive fall of the catalyst temperature Tca, and reduce the pumping loss of the engine.

公开(公告)号：JP2001146121A

公开(公告)日：2001-05-29

申请号：JP32907899

申请日：1999-11-19

Applicant: TOYOTA MOTOR CORP ,  DAIHATSU MOTOR CO LTD

Inventor： TAKAOKA TOSHIBUMI ,  SUZUKI NAOTO ,  SUZUKI TAKASHI ,  OKADA HIROFUMI

IPC: B60W10/04 ,  B60K6/20 ,  B60K6/365 ,  B60K6/40 ,  B60K6/48 ,  B60K6/485 ,  B60K6/54 ,  B60K6/547 ,  B60L15/20 ,  B60L50/16 ,  B60W10/00 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/11 ,  B60W10/18 ,  B60W10/184 ,  B60W10/26 ,  B60W20/00 ,  F02D29/00 ,  F02D29/02 ,  F16H61/02 ,  F16H63/50 ,  H02P9/04 ,  B60K41/06 ,  B60K6/02 ,  B60K41/28 ,  B60L11/14

Abstract: PROBLEM TO BE SOLVED: To improve fuel consumption, emission control, and drivability while selecting an appropriate gear shift in a hybrid vehicle with transmission. SOLUTION: Priority in relation to a request of the vehicle driving force is set in order of a gear shift in the direction for increasing the engine output, a gear shift in the direction for increasing the motor output, and a gear shift in the direction for increasing the gear ratio. Practically, a gear shift having the smallest gear ratio among the range, in which the engine speed more than the predetermined lower limit engine speed can be obtained, is selected (S12, S14), and the requested driving force is obtained by the engine output of the selected gear shift (S16). In the case where the requested driving force can not be obtained by the only engine output, the requested driving force is obtained by the engine output and the motor output (S18). In the case where the requested driving force can not be obtained by the engine output and the motor output, a gear is shifted to the direction for increasing the gear ratio (S20).

公开(公告)号：JP2000291471A

公开(公告)日：2000-10-17

申请号：JP10126599

申请日：1999-04-08

Applicant: TOYOTA MOTOR CORP

Inventor： KANAI HIROSHI ,  HIROSE KATSUHIKO ,  TAKAOKA TOSHIBUMI

IPC: F02D29/02 ,  B60K6/20 ,  B60K6/365 ,  B60K6/445 ,  B60K8/00 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  F02D41/14 ,  F02D41/18 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To perform more precise air-fuel ratio learning control earlier. SOLUTION: An air-fuel ratio learning controller is provided with a learning means 11 for learning an air-fuel learning value of an internal combustion engine 1 in a hybrid vehicle to be driven by the internal combustion engine 1 and an auxiliary power 2. The learning range for learning the air-fuel ratio learning value is divided into a plurality of ranges according to the operating state of the internal combustion engine 1, and the internal combustion engine 1 is forcibly feedback-operated, so that the learning means 11 learns the air-fuel ratio learning value near the center in at least one learning range.

公开(公告)号：JP2000199420A

公开(公告)日：2000-07-18

申请号：JP37338598

申请日：1998-12-28

Applicant: TOYOTA MOTOR CORP

Inventor： KUSADA MASAKI ,  HIROSE KATSUHIKO ,  KANAI HIROSHI ,  TAKAOKA TOSHIBUMI ,  INOUE TOSHIO ,  NISHIGAKI TAKAHIRO ,  KOJIMA MASAKIYO

IPC: F01M11/10 ,  B60K6/20 ,  B60K6/445 ,  B60K8/00 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  F02D17/00 ,  F02D29/02 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To accurately detect deterioration of engine related parts for a hybrid car. SOLUTION: This deterioration detection system comprises motors MG1, MG2 connected to the output shaft of an engine and a control device 180 which temporarily stops or runs the engine 100 under a predetermined driving condition and also controls the actuation of the motors MG1, MG2. The deterioration detection system further comprises an engine operating time counting device to count an engine operating time from a combustion operating time when a driving force generated by engine combustion energy is transmitted to an output shaft and a non-combustion operating time when the engine is not running and as a result no force is transmitted from the engine to the output shaft. The system is further equipped with a deterioration determination device to determine deterioration of engine related parts based on the engine operating times.

公开(公告)号：JP2000186591A

公开(公告)日：2000-07-04

申请号：JP36517598

申请日：1998-12-22

Applicant: TOYOTA MOTOR CORP

Inventor： NISHIGAKI TAKAHIRO ,  HIROSE KATSUHIKO ,  KANAI HIROSHI ,  TAKAOKA TOSHIBUMI ,  INOUE TOSHIO ,  KUSADA MASAKI ,  SUZUKI TAKASHI ,  YAMAZAKI MAKOTO

IPC: F02P17/12 ,  B60K6/20 ,  B60K6/445 ,  B60K8/00 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  F02D29/02 ,  F02D29/06 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To prevent wrong determination of a misfire or the like according to the ion current detection result by limiting the combustion state determination of an internal combustion engine based on an ion current according to the current flowing through a motor and a motor control device of a hybrid vehicle. SOLUTION: An electric control unit(ECU) 40 reads a voltage value of an ignition plug 16 part generated by an ion current, and compares the read value with a designated value to conduct the required control operation when a misfire is determined. In the ion current detecting device of a hybrid vehicle, when a large current flows through a motor, noise is generated to have a bad influence to the ion current to cause wrong determination of a misfire. When a misfire determination limiting routine is executed, the noise present is determined when the detection values Im of currents of motors MG1, MG2 are larger than a designated amount, when the change rate (dIm/dt) of the detected current value is larger than a designated value, or when a regenerative control current Irm flows. Thus, it is possibe to prevent wrong determination of the engine combustion state according to the detection of an ion current influenced by noise.

公开(公告)号：JPH10326115A

公开(公告)日：1998-12-08

申请号：JP29624697

申请日：1997-10-13

Applicant: TOYOTA MOTOR CORP

Inventor： TAKAOKA TOSHIBUMI ,  NISHIGAKI TAKAHIRO ,  KOJIMA MASAKIYO ,  KANAI HIROSHI ,  ABE SHINICHI ,  KOBAYASHI YUKIO ,  NAGASE KENICHI ,  HARADA OSAMU ,  YAMAGUCHI KATSUHIKO

IPC: F02D29/02 ,  B60K1/02 ,  B60K6/20 ,  B60K6/24 ,  B60K6/365 ,  B60K6/40 ,  B60K6/445 ,  B60K6/52 ,  B60K17/356 ,  B60L50/15 ,  B60L50/16 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  G05D17/00 ,  H02K7/18 ,  H02P5/747 ,  H02P9/04 ,  B60L11/14 ,  H02P7/747

Abstract: PROBLEM TO BE SOLVED: To prevent the lowering of efficiency due to the energy circulating to a power transmission path for a motive power output device which uses an engine as and a motor its power source. SOLUTION: This motive power output device consists of a generator MG1, a motor MG2 and an output shaft of an engine 150 which are connected to a sun gear shaft of a planetary gear 120, a ring gear shaft and the gear 120 respectively. In such a constitution, the motive power generated by the engine 150 is regenerated as electric power by the motor MG2. Then the circulation of energy of 'gear 120-motor MG2-generator MG1gear 120' that is caused when the generator MG1 is powered by the electric power can be prevented by the following control to evade the lowering of efficiency. That is, the torque command value of the motor MG2 is monitored, and the operation point of the engine is changed to a point of higher rotational frequency when the said torque command value is reduced less than its threshold Tref.

公开(公告)号：JPH10306739A

公开(公告)日：1998-11-17

申请号：JP29354197

申请日：1997-10-09

Applicant: TOYOTA MOTOR CORP

Inventor： SASAKI SHOICHI ,  KOTANI TAKESHI ,  YAMAOKA MASAAKI ,  TAKAOKA TOSHIBUMI ,  YAMAGUCHI KATSUHIKO ,  KANAI HIROSHI

IPC: F02D29/02 ,  B60K1/02 ,  B60K6/20 ,  B60K6/365 ,  B60K6/38 ,  B60K6/40 ,  B60K6/445 ,  B60K6/448 ,  B60K6/52 ,  B60K17/356 ,  B60L15/02 ,  B60L50/15 ,  B60L50/16 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  B60L11/14

Abstract: PROBLEM TO BE SOLVED: To reduce the rotating speed of a prime mover rapidly to the value zero at the time of stopping the operation of the prime mover in a power output device composed of the prime mover, a triaxial power input-output means and two motors. SOLUTION: A power output device 110 is provided with a planetary gear 120, an engine 150 with a crankshaft 156 connected to the planetary gear 120, a motor MG1 fitted to a sun gear, and a motor MG2 fitted to a ring gear. When the stop of the engine 150 is commanded, fuel injection to the engine 150 is stopped, and the motor MG1 is so controlled that torque in a reverse direction to the rotating direction of the crankshaft 156 acts upon the crankshaft 156 through the planetary gear 120 and a carrier shaft 127 until the rotating speed of the engine 150 becomes close to the value zero. As a result, the rotating speed of the engine 150 can be rapidly reduced to the value zero.

公开(公告)号：JPH10150701A

公开(公告)日：1998-06-02

申请号：JP3551797

申请日：1997-02-03

Applicant: TOYOTA MOTOR CORP

Inventor： KINUGASA YUKIO ,  YOSHIZAKI KOJI ,  TAGA YOSHIAKI ,  TAKAOKA TOSHIBUMI

IPC: B60K17/04 ,  B60K6/20 ,  B60K6/26 ,  B60K6/387 ,  B60K6/40 ,  B60K6/445 ,  B60K6/448 ,  B60K6/46 ,  B60L3/00 ,  B60L11/18 ,  B60L50/10 ,  B60L50/15 ,  B60L50/16 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  F02D29/06 ,  H02J7/00 ,  H02P9/04 ,  B60L11/02

Abstract: PROBLEM TO BE SOLVED: To reduce the size of an electricity storage means by controlling a motor and a generator so that the state of the electricity storage means detected by a state detecting means may become a target state set by a target state setting means. SOLUTION: A device 10 is provided with an electronic control unit(ECU) 80 which coverts the power output from an engine 20 into electric energy by means of a generator 40 to charge a battery 60 and outputs the power to correspond to the stepping-on measurement of an accel pedal is stepped to a driving shaft 70 from a motor 50 using the electric energy stored in the battery 60. A CPU 80a of the ECU 80 receives a state SOC (the ratio of dischargeable capacity to total capacity) of the battery 60 and calculates a difference ΔS between the input state SOC and a target state SOC* and then compares the difference ΔS with a threshold L1 and a threshold H1 and, if the difference ΔS is smaller than the threshold L1 , determines that the battery 60 needs charging and starts the charging of the battery 60. If the difference ΔS is larger than the threshold H1 , the CPU 80a determines that the battery 60 needs no charging and then stops the charging of the battery 60. By this method, the state SOC of the battery can be controlled within a given range and therefore the size of the battery can be reduced.

公开(公告)号：JPH07279712A

公开(公告)日：1995-10-27

申请号：JP7691594

申请日：1994-04-15

Applicant: TOYOTA MOTOR CORP

Inventor： TAKAOKA TOSHIBUMI

IPC: F01L1/34 ,  F02D13/02 ,  F02D41/10 ,  F02D41/34 ,  F02D43/00 ,  F02D45/00 ,  F02P5/152 ,  F02P5/153

Abstract: PURPOSE:To prevent occurrence of transient knocking caused by variable timing by controlling various kinds of means which suppress knocking according to variation rates of valve timing. CONSTITUTION:A valve timing control device 102 controls an opening/closing timing of an intake valve 106 of an engine 105 according to an operation condition by the use of a variable valve timing device 101. Variation degree of the opening/closing timing of the intake valve 106 is detected by means of a valve timing variation degree detecting means 103. Knocking suppression control is executed according to the detected variation degree. Namely, when the closing timing of the intake valve 106 is abruptly advanced in angle, an actual compression ratio is increased by the above-mentioned control, and transient knocking generation caused by advancement of the compression starting timing is suppressed. When the opening timing of the intake valve 106 is abruptly advanced in angle, valve overlapping is increased by the above-mentioned control, and transient knocking generation caused by intake temperature rise is suppressed.

公开(公告)号：JP2008138688A

公开(公告)日：2008-06-19

申请号：JP2008016936

申请日：2008-01-28

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： OTA TOKUJI ,  TAKAOKA TOSHIBUMI

IPC: F02M55/02 ,  F02M31/125 ,  F02M37/00 ,  F02M53/00 ,  F02M63/00

CPC classification number: F02D41/3094 ,  Y02T10/123

Abstract: PROBLEM TO BE SOLVED: To provide a fuel supply device capable of improving high temperature startability of an internal combustion engine provided with a port injection injector and a cylinder injection injector. SOLUTION: The fuel supply device 10 for an internal combustion engine 1 can supply the port injection injector 4p injecting fuel into an intake port and the cylinder injection injector 4c directly injecting fuel into a combustion chamber 2 with fuel from a fuel tank 11 by a fuel pump 12. The device is provided with a port injection delivery pipe 14p to which the port injection injector 4p is connected, a cylinder injection delivery pipe 14c to which the cylinder injection injector 4c is connected, and a fuel heating means 16 capable of heating fuel pressurized and fed by the fuel pump 12. Both of delivery pipes 14p. 14c are connected to the fuel pump 12 in parallel and the fuel heating means 16 is arranged to heat only fuel supplied to either of delivery pipes 14p, 14c. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够提高设置有端口喷射喷射器和气缸喷射注射器的内燃机的高温起动性的燃料供给装置。 解决方案：用于内燃机1的燃料供给装置10可以将喷射燃料的喷射口喷射器4p供给到进气口，并且气缸喷射喷射器4c将来自燃料箱11的燃料的燃料直接喷射到燃烧室2中 该装置设置有端口喷射喷射器4p连接的端口喷射输送管14p，气缸喷射注射器4c连接到的气缸喷射输送管14c和能够连接的燃料加热装置16 加热燃料泵12供给的燃料。两个输送管14p。 14c平行地连接到燃料泵12，并且燃料加热装置16被布置成仅加热供给到输送管14p，14c中的任一个的燃料。 版权所有（C）2008，JPO＆INPIT