公开(公告)号：JPS62279227A

公开(公告)日：1987-12-04

申请号：JP12023986

申请日：1986-05-27

Applicant: TOYOTA MOTOR CORP

Inventor： HORII KINGO ,  NAKAMURA NORIHIKO ,  NOGUCHI HIROSHI ,  TANAHASHI TOSHIO ,  UMEHANA TOYOICHI ,  HIROSE KATSUHIKO

IPC: F02B29/04

Abstract: PURPOSE:To prevent the oversize of a cooling system by providing an air-cooled section and a section to be cooled with a cooling refrigerant on a radiator of an intercooler which employs water as the refrigerant and using the refrigerant-cooled section additionally as required. CONSTITUTION:A high temperature air fed from a supercharger 7 is cooled by an intercooler 30 through which the water circulates. The water fed from the intercooler 30 and passed through a heatexchanger 31 passes through a three-way valve 64' and an air-cooled radiator section 32 under normal operation and circulates through the three-way valve 64 to the intercooler 30. Under heavy load of engine, three-way valves 64, 64' are switched and the water passes through the cooling section 66 of a vehicle cooling system and circulates again. Since the three-way valves 64, 64' are switched by a controller 70 such that the cooling section 66 is used according to the operating condition of engine, the size of the vehicle cooling system can be reduced.

公开(公告)号：JPS62247123A

公开(公告)日：1987-10-28

申请号：JP9010686

申请日：1986-04-21

Applicant: TOYOTA MOTOR CORP

Inventor： HORII KINGO

IPC: F02B29/04

Abstract: PURPOSE:To perform effective cooling of intake air and to prevent lowering of a cooling effect, by a method wherein a water-cooled intercooler and an intercooler cooled by mean of refrigerant are provided, and the intercoolers are selectively run according to the running state of an engine. CONSTITUTION:A water-cooled type first intercooler 42 and a second intercooler 44, formed with an evaporator through which the refrigerant of a car cooling device is circulated, are disposed in series down a line from a.Roots blower type supercharger 20 in an intake air passage 14. The first intercooler 42 is located in a cooling solution circulating means 46, and the second intercooler 44 is located in a branch circuit 78 branched from a freezing circuit 54. A pump 50, an electromagnetic type cutoff valve 80 in the branch circuit 78, and an electromagnetic clutch 74 for a compressor 58 in the freezing circuit 54 and the like are controlled by a control circuit 24. When an engine load exceeds a set value, the first intercooler 42 is actuated, and the intercooler 44 is actuated in a given period during acceleration of an engine.

公开(公告)号：JPS62153518A

公开(公告)日：1987-07-08

申请号：JP29330085

申请日：1985-12-27

Applicant: TOYOTA MOTOR CORP

Inventor： HORII KINGO

IPC: F02B29/04

Abstract: PURPOSE:To reduce the operation rate of a refrigerant compressor, by arranging a water cooled intercooler and another intercooler utilizing a compartment cooling refrigerant in series to each other, and using the water cooled intercooler when an engine load is greater than a predetermined value, while when an intake air temperature rises, operating the intercooler utilizing the refrigerant as changing the capacity of the refrigerant compressor according to the intake air temperature. CONSTITUTION:A first water cooled intercooler 42 is arranged downstream of a supercharger 20, in which intercooler is circulated a cooling water of an engine cooling system. A second intercooler 44 is arranged downstream of the first intercooler 42 in series thereto, which intercooler 44 uses a part of a refrigerant of a compartment cooling device 54 having a variable displacement compressor 56. The first intercooler 42 is operated when an engine load is greater than a predetermined value, while the second intercooler 44 is operated when an outlet temperature 86 of the first intercooler 42 is greater than a predetermined value. When the outlet temperature is less than the predetermined value, the capacity of the variable displacement compressor is decreased, while when the outlet temperature is greater than the predetermined value, the capacity is increased, thus preventing undue driving of the compressor.

公开(公告)号：JPS6275040A

公开(公告)日：1987-04-06

申请号：JP21469585

申请日：1985-09-30

Applicant: TOYOTA MOTOR CORP

Inventor： ONAKA HIDEMI ,  SHIBATA YOSHIAKI ,  HORII KINGO ,  UMEHANA TOYOICHI

IPC: F02B33/00 ,  F02D15/04 ,  F02D23/00 ,  F02D37/00

Abstract: PURPOSE:To prevent the durability deterioration of the selector device of a supercharged engine and the increase of the number of shocks and to improve the fuel consumption, by providing respective time delays for the selecting of the supercharger and the selecting of compression ratio, and varying the compression ratio on supercharging and no supercharging. CONSTITUTION:A supercharged engine 1 is provided with a compression ratio varying device 10 adjacently a combustion chamber 9. The signals of a revolution number sensor 14 and an intake air quantity sensor 15 are inputted to a control computer 13. The output of the control computer 13 is sent to the compression ratio varying device 10 and is sent to a supercharger 3 and a vacuum switching valve 8 so as to control the supercharging. When the supercharger is selected on to off, the delay time of selecting the supercharger is set bigger than the delay time of selecting the compression ratio. Thus, the fuel consumption of the engine can be improved, and the durability deterioration of a selector device and the increase of the number of shocks can be prevented.

公开(公告)号：JPS6258026A

公开(公告)日：1987-03-13

申请号：JP19769885

申请日：1985-09-09

Applicant: TOYOTA MOTOR CORP

Inventor： SHIBATA YOSHIAKI ,  ONAKA HIDEMI ,  UMEHANA TOYOICHI ,  HORII KINGO

IPC: F02D23/00 ,  F02D15/04

Abstract: PURPOSE:To prevent an engine from knocking as well as to aim at improvement in its output, by varying a compression ratio according to respective cases of supercharging and nonsupercharging, and making the compression ratio higher at the time of the nonsupercharging, improving a rate of fuel consumption, while also varying the compression ratio according to supercharging pressure at the time of the supercharging. CONSTITUTION:In an engine 1 where a mechanical supercharger 3 is installed in a suction passage 2, there is provided with a compression ratio variable device 10 as adjoined to a combustion chamber 9, and it is so constituted to do, for example, a variable displacement piston 11 is driven by a servomotor 12 in a step manner. And, the said device 10 is controlled by a control computer 13, while each signal of an engine speed and a suction air quantity out of each of sensors 14, 15 and 20 is inputted into this control computer 13. At this time, making the control computer 13 have such a control function that makes a compression ratio lower than the off time when the supercharger 3 is on, while afterward, makes the compression ratio the lower the larger in supercharging pressure.

公开(公告)号：JPS61187529A

公开(公告)日：1986-08-21

申请号：JP2648085

申请日：1985-02-15

Applicant: TOYOTA MOTOR CORP

Inventor： HORII KINGO

IPC: F02B33/00 ,  F02B39/12 ,  F02D41/00 ,  F02D41/12

Abstract: PURPOSE:To improve the fuel consumption in low revolution and in low loading by opening an electromagnetic clutch by a control means when the engine temperature detected by a temperature sensor is lower then a set value and racing is detected by a racing detecting means. CONSTITUTION:A supercharger 28 is constituted of a Roots pump having two- leaf-shaped rotor 34, and an electromagnetic clutch 38 is installed onto the rotor shaft 36 of one rotor 34. The engagement and diengagement of the electromagnetic clutch 38 are switched by a relay 42, and the conduction control for the relay 42 is carried-out by a control means 50. Into said control means 50, each signal of a variety of sensors 24, 66, 68, 70, and 72 for detecting the engine operation state, besides, a cooling-water temperature sensor 64, is input. In this case, a racing detecting means is constituted of the detection signals of a distributor 70 and a shift switch 72. When the engine is at low temperature and in racing operation, the operation of the supercharger 28 is suspended.

公开(公告)号：JPS6198933A

公开(公告)日：1986-05-17

申请号：JP22024384

申请日：1984-10-19

Applicant: Toyota Motor Corp

Inventor： NAKAMURA NORIHIKO ,  HORII KINGO

IPC: F02D41/02 ,  F02D23/00 ,  F02D41/00 ,  F02D41/22

Abstract: PURPOSE: To improve fuel consumption and output by setting to theoretical and output air/fuel ratio if the temperature of catalyst floor under engine operation is lower than predetermined setting level while to such level as to prevent overheating if it is higher than setting level.
CONSTITUTION: Under engine operation, control circuit 11 will first calculate the basic injection pulse width on the basis of the outputs from an air flow sensor 5 and a crank angle sensor 16. Then it is decided whether the catalyst floor temperature data T of a catalyst converter 13 to be obtained on the basis of the output from an exhaust gas temperature sensor 26 is higher than the temperature being set to prevent overheating of catalyst. If the answer is YES, the basic injection pulse width is corrected by correction factor to be determined with correspondence to the cooling water temperature detected through a water temperature sensor 24, correction factor for preventing overheat of catalyst, etc. thus to set the air/fuel ratio to such level as to prevent overheating. If the answer is NO, it is set to theoretical and output air/fuel ratio.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：如果发动机运行时催化剂底板的温度低于预定的设定水平，通过设定理论和输出空气/燃料比来提高燃油消耗和输出，同时防止过高如果高于设定水平。 构成：在发动机运转下，控制电路11首先根据来自气流传感器5和曲柄角传感器16的输出来计算出基本的喷射脉冲宽度。接着，判定催化剂底层温度数据T 基于来自排气温度传感器26的输出而获得的转换器13高于设定为防止催化剂过热的温度。 如果答案为“是”，则通过与通过水温传感器24检测到的冷却水温度相对应的校正因子来校正基本喷射脉冲宽度，用于防止催化剂过热的校正因子等，从而将空气/ 燃料比达到防止过热的水平。 如果答案为否，则设定为理论和输出空燃比。

公开(公告)号：JPS6119934A

公开(公告)日：1986-01-28

申请号：JP14055984

申请日：1984-07-09

Applicant: Toyota Motor Corp

Inventor： HORII KINGO

IPC: F02B33/00 ,  F02B39/12

CPC classification number: F02B39/12

Abstract: PURPOSE:To restrain variations in torque in the four wheel driving range, by shifting the set operating condition of change-over between the engagement and disengagement of a clutch toward the high rotational speed and high load operating side when a transmission gear unit it changed-over from its two wheel driving operation to its four wheel driving operation so that a supercharger is maintained in its resting condition upon four wheel driving operation. CONSTITUTION:An operating condition detecting means 5 detects the amount Q of inake-air and the rotation speed N of an engine. A four wheel driving change- over detecting means 7 detects whether it is the four wheel driving running or the two wheel driving running, and a set value is set to A during two wheel driving running so that a clutch operating means 6 engages and disengages a clutch 4 in accordance the operating condition detected by the operating condition detecting means 5 to operate or stop a supercharger 2. When the four wheel driving change-over means 7 detects the four wheel driving running, a set value change-over means 8 changes the set value for effecting the change-over between the engagement and disengagement of the clutch to B, thereby, the starting point of supercharging operation is shifted toward the higher rotational speed and high load side.

Abstract translation: 目的：为了抑制四轮行驶范围内的扭矩变化，通过在变速齿轮单元变更时，使离合器的接合和分离之间的转换的设定操作状态向高转速和高负载运转侧移动， 从其双轮驱动操作到其四轮驱动操作，使得增压器在四轮驱动操作时保持在其静止状态。 构成：操作条件检测装置5检测发动机的空气量Q和转速N. 四轮驱动切换检测装置7检测是否是四轮行驶行驶或两轮行驶行驶，并且在两轮行驶期间将设定值设定为A，使得离合器操作装置6接合和脱离 离合器4根据由操作条件检测装置5检测到的操作条件来操作或停止增压器2.当四轮驱动转换装置7检测到四轮行驶行驶时，设定值转换装置8改变 用于实现离合器与B的接合和分离之间的转换的设定值，从而，增压操作的起始点朝着较高转速和高负载侧移动。

公开(公告)号：JPS59183044A

公开(公告)日：1984-10-18

申请号：JP5777883

申请日：1983-04-04

Applicant: Toyota Motor Corp

Inventor： HORII KINGO ,  MASUI TAKATOSHI

IPC: F02D29/02 ,  F02D41/12 ,  F02D41/26

CPC classification number: F02D41/123 ,  F02D41/26

Abstract: PURPOSE: To reduce the frequency of repetition of "fuel cut" executing and resetting operation at the time of four-wheel driving of a vehicle, by making conditions of "fuel cut" at the time of four-wheel driving stricter than that of "fuel cut" at the time of two-wheel driving.
CONSTITUTION: It is judged by a running condition judging means whether a vehicle is driven by four wheels or two wheels. In case that the vehicle is being driven by four wheels, a first and a second lower-limit value setting means calculate a "fuel cut" executing engine speed Nc' and a "fuel cut" resetting engine speed NR' by setting lower-limit values at a "fuel cut" executing engine speed Nc and a "fuel cut" resetting engine speed NR. While executing "fuel cut", a first and a second comparison means are set into operation in response to the output of said judging means. With such an arrangement, it is enabled to reduce the frequency of repetition of "fuel cut" executing and resetting opration.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：为了减少车辆四轮驱动时的“燃油切断”执行和重启动作的重复频率，通过在四轮行驶时更加严格的“燃油切断”条件 比两轮驾驶时的“燃油切断”要好。 构成：通过运行条件判断装置判断车辆是由四个车轮还是两个车轮驱动。 在车辆由四个车轮驱动的情况下，第一和第二下限值设定装置计算执行发动机转速Nc'的“燃料切断”和“重新设定发动机转速NR'的”燃料切断“，由 在执行发动机转速Nc的“燃料切断”下设定下限值，重新设定发动机转速NR的“燃料切断”。 在执行“燃料切断”时，响应于所述判断装置的输出，将第一和第二比较装置设置成运行。 通过这样的布置，能够减少重复执行和复位操作的重复“频率”。