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1. 发明专利

JPH08140205A APPARATUS FOR MANAGING BATTERY FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPH08140205A
公开(公告)日：1996-05-31
申请号：JP27391494
申请日：1994-11-08
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： INO MUNEHARU , KATO TAKETOSHI , KOBAYASHI TETSUYA
IPC分类号： G01R31/36 , B60L3/00 , H01M10/42 , H02J7/00
摘要： PURPOSE: To charge a battery at the timing suitable for prolonging its life by evaluating the possibility of shortening of the life caused by repeated partial discharging and partial charging, and generating an alarm of necessity of full charging to a user who intends to alight when the possibility of a short life is large. CONSTITUTION: A clock circuit 24 counts a non-attended time according to the command of a main control circuit 18 only when an IG switch 30 is OFF. When the switch 30 is closed, the circuit 18 starts an inverter control circuit 16 to start the output control of a motor 14. An SOC arithmetic circuit 20 obtains an SOC based on information such as charging and discharging current, voltages, temperatures, etc., from a sensor 34 attached to a main battery 10, and informs the circuit 18 of the information and a charge control circuit 22. The circuit 18 generates an alarm to a user if the SOC value is lowered from an alarm threshold value SOC0 . Thus, the user can execute a charging operation at the suitable timing, and prolongs the life of the battery, thereby enhancing the economy.

2. 发明专利

JPH0878061A CHARGE CONTROL DEVICE FOR SEALED BATTERY 失效
公开(公告)号：JPH0878061A
公开(公告)日：1996-03-22
申请号：JP20892794
申请日：1994-09-01
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： INO MUNEHARU , KATO TAKETOSHI , KOBAYASHI TETSUYA
IPC分类号： H02J7/10 , H01M10/44
摘要： PURPOSE: To charge a battery neither too much nor too little whether the battery is new one or not or the like by combining the detection of sealed reaction with switching voltage setting responding to a detection result so as to conduct specified action. CONSTITUTION: Constant current charge by means of a current I1 is executed at first. When a battery voltage reaches a switching voltage V1 , the constant current charge by means of a weaker current I2 is executed. When the battery voltage reaches a switching voltage V2 , the constant current charge by means of a further weaker current I3 is executed. The charge is terminated for instance after the lapse of a predetermined time. When the capacity of the battery is assumed to be C, the current I1 is about 0.2 to 0.3C, the current I2 is about 0.1C, the I3 is about 0.05C, and a constant current charge current by means of the current I3 continues 5 hours for instance. The current I3 is desirable to be set to such a value that an oxygen recycle reaction in the battery with an adequate electrolyte amount is conducted sufficiently so as not to exhaust gas outward.

3. 发明专利

JPH0843504A BATTERY RESIDUAL CAPACITY METER FOR ELECTRIC CAR 失效
公开(公告)号：JPH0843504A
公开(公告)日：1996-02-16
申请号：JP17552194
申请日：1994-07-27
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KATO TAKETOSHI , KOBAYASHI TETSUYA , INO MUNEHARU
IPC分类号： G01R31/36 , H01M10/48 , H02J7/00
摘要： PURPOSE:To measure residual capacity of a battery while considering degree of deterioration of the battery. CONSTITUTION:A main battery 2 is mounted on an electric car, and a residual capacity of the main battery 2 which can be charged and discharged is measured. When quantity of discharge is larger than quantity of charge charged by regeneration and influence of polarization of the battery does not exist, a reference residual capacity is detected by discharge characteristic of the battery on the basis of detection current and detection temperature, and an average residual capacity difference averaging a deference between the present residual capacity of the main battery 2 and the reference residual capacity is found. The average residual capacity is subtracted from an initial full charge capacity which is the maximum capacity capable of charging the main battery, every detection of a charge completion signal, a full charge capacity operation part 105 for calculating a full charge capacity and an operation full charge capacity input from the full charge capacity operation part 105 are lessened together with increase of discharge current. The discharge current is lessened together with decrease of battery temperature, furthermore, an integrating value of the discharge current is subtracted, a residual capacity operation part 104 for calculating the present residual capacity of the main battery 2 is provided.

4. 发明专利

JPH01186134A CHARGER FOR VEHICLE 失效
公开(公告)号：JPH01186134A
公开(公告)日：1989-07-25
申请号：JP986788
申请日：1988-01-20
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KATO TAKETOSHI , ITO KEIICHI
IPC分类号： H02J7/24
摘要： PURPOSE:To prevent a battery from quickly discharging by providing a circuit for detecting the discharging state of the battery, a booster for raising a battery voltage to a predetermined voltage to apply it to a rotor coil, and a control circuit for operating the booster when the battery discharge is detected. CONSTITUTION:A discharging state detector 108 detects the collector voltage of a transistor 101 to know its operation duty, and generates a '1' level output when the duty becomes 100%. A control circuit 110 inputs one phase voltage of a stator coil 22 to know its generation start, and receives the generation start and '1' level output of a discharging state detector 109 to operates a DC/DC converter 111 due to boosting means of rear stage. The converter 111 raises the output voltage of a charging generator 2 to a predetermined voltage, and applies it to a rotor coil 21 through a diode 112.

5. 发明专利

JPH0829506A METHOD AND APPARATUS FOR DETERMINING RESIDUAL CAPACITY OF BATTERY 失效
公开(公告)号：JPH0829506A
公开(公告)日：1996-02-02
申请号：JP18878394
申请日：1994-07-18
申请人： NIPPON SOKEN , NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KAWAI TOSHIYUKI , UCHIDA MITSUNORI , MAKINO TASUKE , KATO TAKETOSHI , SASAKI TORAHIKO
IPC分类号： G01R31/36 , B60R16/04
摘要： PURPOSE:To determine the residual capacity of battery accurately by detecting the current being discharged from a battery, along with the voltage thereof, under accelerating state of vehicle after stoppage thereby calculating the internal resistance of the battery. CONSTITUTION:Stoppage of a vehicle is determined and the voltage and current of a battery are read in through a volt meter 4 and an ammeter 5. When a decision is made that a vehicle is accelerating after stoppage, the voltage and current measured at a predetermined time interval are stored continuously until the end of acceleration. Internal resistance of the battery is then calculated based on the measured and stored discharging current and voltage of the battery or the battery voltage under a predetermined discharging current is obtained. Finally, the residual capacity of battery is determined with reference to a data table of the internal resistance vs residual capacity or the battery voltage vs residual capacity and displayed on a monitor.

6. 发明专利

JPH07244135A DETECTION METHOD OF BATTERY STATE 失效
公开(公告)号：JPH07244135A
公开(公告)日：1995-09-19
申请号：JP6469594
申请日：1994-03-07
申请人： NIPPON SOKEN , NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KAWAI TOSHIYUKI , MAKINO TASUKE , UCHIDA MITSUNORI , KATO TAKETOSHI , SASAKI TORAHIKO
IPC分类号： G01R31/36
摘要： PURPOSE:To precisely detect the residual amount of a battery even when a discharge current is changed largely. CONSTITUTION:A correction factor is decided on the basis of an average discharge current from a battery within a prescribed time prior to the resent time. The prescribed time is set to a time or higher in which the discharge polarization of the battery becomes a steady state. A dischargeable capacity is decided in such a way that the full charge of the battery is multiplied by the correction factor, a consumed electric amount is subtracted from the dischargeable amount, and the residual amount of the battery is obtained.

7. 发明专利

JPH06121406A ENGINE-DRIVEN GENERATOR APPARATUS 失效
公开(公告)号：JPH06121406A
公开(公告)日：1994-04-28
申请号：JP2027793
申请日：1993-02-08
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KATO TAKETOSHI , FUKAYA SHIGETOSHI , ARAI YOSHIHIDE
IPC分类号： B60L50/10 , B60K6/20 , B60K6/46 , B60W10/06 , B60W10/08 , B60W20/00 , F02D29/02 , F02D29/06 , H02J7/14 , H02P9/04 , B60L11/02
摘要： PURPOSE:To return the number of revolution of an engine to the range of an objective number of revolution by setting the objective power of a generator so that the number of revolution of the engine becomes the specified number of revolution, and correcting the amount of fuel injection when the target power is deviated from the specified range and the number of revolution of the engine is located at the outside of the range of the objective number of revolution. CONSTITUTION:A controller operates the generated power based on the output current of a generator and operates the objective power based on the number of revolution of an engine. The results are outputted as a control voltage Vs and an objective voltage Vp. Vs and Vp are compared with a comparator. The duty ratio of a power transistor is controlled so that both voltages agree. Then, the number of revolution is inputted (118) into the controller, and whether N is within the specified range or not is checked (120). When N is located at the outside of the range and higher than a reference number of revolution No, a specified voltage value DELTAV is added to Vp (122). The generated power is increased, and N is decreased. When N is located at the outside of the range and lower than No conversely, V is subtracted from Vp (122), the generated power is decreased and N is increased.

8. 发明专利

JPS6295935A VEHICLE GENERATOR CONTROLLER 失效
公开(公告)号：JPS6295935A
公开(公告)日：1987-05-02
申请号：JP23430185
申请日：1985-10-19
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： WATANABE YOHEI , ITO KEIICHI , SADA TAKESHI , KATO TAKETOSHI
IPC分类号： H02J7/24 , H02J7/16 , H02P9/04

9. 发明专利

JPH07294611A METHOD FOR DETECTING STATE OF BATTERY 失效
公开(公告)号：JPH07294611A
公开(公告)日：1995-11-10
申请号：JP11220294
申请日：1994-04-27
申请人： NIPPON SOKEN , NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： KAWAI TOSHIYUKI , MAKINO TASUKE , UCHIDA MITSUNORI , KATO TAKETOSHI , SASAKI TORAHIKO
IPC分类号： G01R31/36 , H01M10/48
摘要： PURPOSE:To correctly determine a time when charging of a battery is necessary, by preliminarily setting a current required at an average accelerating time and calculating a voltage of the battery when the set current is discharged from a discharging current from the battery and a voltage of the battery. CONSTITUTION:After a current and a voltage are detected, it is detected whether charging has started from a code of the detected current. Once the charging has started, a process to release charging/polarization is carried out. The flow of the detecting operation is refrained from proceeding until the charging/polarization is released. The detected current is temporarily stored as a change of a capacity. It is detected whether the stored capacity change exceeds a rated capacity. Then, voltage of a battery when the current is discharged which is necessary at an average accelerating time is calculated from a pair of the measured current value and voltage value and stored. Whether a stored count of true battery voltages has reached a regulated value or more is compared, thereby to calculate a true voltage of the battery. The battery voltage of the highest frequency is estimated to be a true value when a predetermined current is discharged. A time when the battery is to be charged, is determined based on the estimated voltage value.

10. 发明专利

JPH07147729A CONTROLLER FOR BATTERY CHARGER 失效
公开(公告)号：JPH07147729A
公开(公告)日：1995-06-06
申请号：JP29361393
申请日：1993-11-24
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO , TOYODA AUTOMATIC LOOM WORKS
发明人： KUNO HIROMICHI , INO MUNEHARU , KATO TAKETOSHI , OGURI KOJI
IPC分类号： H02J7/00 , B60L3/00 , B60L11/18 , H02J7/10
摘要： PURPOSE:To avoid the trouble of a control operation caused by the difference between the detected value of a battery side sensor and the detected value of a charger side sensor. CONSTITUTION:When a constant current charging is instructed from a battery computer to a charger control unit (104), a maximum current value is also instructed. The charger control unit executes a constant current control (106 and 112) so as to have the charging current not to exceed the maximum current value. When a constant voltage control is instructed from the battery computer to the charger control unit (114), the charger control unit replaces the reading of its own voltage sensor with the reading of the voltage sensor of the battery computer (116). With this constitution, the trouble of a control operation caused by the difference between the outputs of both the voltage sensors can be avoided.

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