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11. 发明专利

JPH10246760A BATTERY REMAINING CAPACITY METER AND BATTERY REMAINING CAPACITY MEASURING METHOD 失效
公开(公告)号：JPH10246760A
公开(公告)日：1998-09-14
申请号：JP5049697
申请日：1997-03-05
申请人： NIPPON SOKEN , DENSO CORP
发明人： KAWAI TOSHIYUKI , SAKAGAMI YUICHI , KATO TOMOYA
IPC分类号： B60L3/00 , B60L11/18 , G01R31/00 , G01R31/36 , H02J7/00
摘要： PROBLEM TO BE SOLVED: To obtain a battery remaining capacity as a value excellent in precision by a method wherein an initial discharge characteristic is parallel-transferred so that a discharge voltage corresponding to a calculated discharge amount on the initial discharge characteristic coincides with a measured discharge voltage by voltage measuring means. SOLUTION: An ammeter 30 measures a current flowing between a Ni-MH battery 10 and a load 20, and a voltmeter 40 measures a terminal voltage between both electrodes of the Ni-MH battery 10. Each measured output inputs into a microcomputer 50. An initial discharge characteristic of the Ni-MH battery 10 has previously stored in an ROM as a discharge characteristic representing the relationship between the discharge voltage and the discharge current in a state that the Ni-MH battery 10 is fully charged. A difference between a discharge voltage corresponding to the discharge amount on the initial discharge characteristic and the present discharge voltage is calculated. A parallel movement is carried out only by a difference of an updated voltage, so that the varied discharge characteristic of the Ni-MH battery 10 can be estimated readily, accurately and precisely. Accordingly, remaining capacity can be obtained as a precise value by displaying a display unit 60.

12. 发明专利

JP2002325371A VOLTAGE DETECTING APPARATUS OF BATTERY PACK 失效
公开(公告)号：JP2002325371A
公开(公告)日：2002-11-08
申请号：JP2001129958
申请日：2001-04-26
申请人： DENSO CORP
发明人： KATO TOMOYA
IPC分类号： H02J7/02 , B60L11/18 , G01R19/00 , G01R31/36 , H01M10/48 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To provide voltage detecting apparatus for a battery pack, which can reduce fluctuations in an input potential to a voltage detection part, simplify the configuration of the voltage detection part and lowering of the withstand voltage. SOLUTION: The electric potential at points connecting current limiting resistor elements is detected for prescribed number of current limiting resistor elements R1-R16, one end each of which is connected individually to each battery terminal of serially connected battery modules 1-15, and the other ends of which are connected individually in pairs each, to be formed in the manner of nesting state as a whole. In this way, the fluctuations in the input voltage at the voltage detection part can be reduced to simplify the device and lower the withstanding voltage.

13. 发明专利

JPH11178228A POWER SUPPLY UNIT FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH11178228A
公开(公告)日：1999-07-02
申请号：JP33913597
申请日：1997-12-09
申请人： DENSO CORP
发明人： KATO TOMOYA
IPC分类号： H02J7/00 , H02J7/02 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To provide a power supply unit for electric vehicle having little power supply loss and can improve reliability in charging a main battery for an electric vehicle through a commercial power source more sharply than a conventional type. SOLUTION: A low-voltage output part 42, which is capable of feeding power supply voltage to a battery controller 3, is newly formed at a DC power source 4 for conducting feeding to a main battery 1 from a commercial power source. A the time of charging the main battery 1, the low-voltage output party 42 applies power supply voltage to the battery controller 3 with priority given over applying power supply voltage to the battery controller 3 from an auxiliary battery 2. It is thus possible to prevent the auxiliary battery 2 from being exhausted, and the operation of battery controller 3 from becoming more unstable than it, even at long charging, such as uniform charging of the main battery 1.

14. 发明专利

JPH11164486A MEASURING DEVICE WITH NONVOLATILE MEMORY FOR MEASUREMENT ERROR COMPENSATION 失效
公开(公告)号：JPH11164486A
公开(公告)日：1999-06-18
申请号：JP32816297
申请日：1997-11-28
申请人： DENSO CORP
发明人： KATO TOMOYA
IPC分类号： G01R31/36 , G01R31/28 , G06F12/16 , H02J7/00
摘要： PROBLEM TO BE SOLVED: To provide a measuring device which involves a nonvolatile memory for measurement error compensation with superior measurement error precision, while suppressing its formation from becoming complex. SOLUTION: A compensation value which compensates for an detection error at a measuring part 721 is stored, in at least three storage areas at a storage part consisting of nonvolatile memories respectively. At reading-out, data read-out from respective storage areas are so-called majority processed at a CPU 7222 to be outputted as a majority compensation value (majority processed compensation value). The respective storage areas for storing identical compensation values are distributed and stored into nonvolatile memory chips 7223 to 7225 which are different from one another which use an address bus and a data bus in common. In other words, since the compensation values with identical contents to be majority processed are distributed in chips different from one another, it is possible to exhibit a working effect which can compensate for not only the failures in the storage area of the chips but also the various types of operating failures of the chips other than these.

15. 发明专利

JP2000009784A LEAK DETECTING DEVICE FOR ASSEMBLED BATTERY UNIT DRIVING CIRCUIT 失效
公开(公告)号：JP2000009784A
公开(公告)日：2000-01-14
申请号：JP17432298
申请日：1998-06-22
申请人： DENSO CORP
发明人： ITO MASAYA , KATO TOMOYA
IPC分类号： G01R31/02 , B60L3/00 , G01R31/36 , H01M10/42
摘要： PROBLEM TO BE SOLVED: To confirm a leak detecting action, including the connecting state of an assembled battery unit drive circuit to be leak-detected, a leak detecting circuit and a forced energization circuit, while avoiding complicating the circuit configuration. SOLUTION: A leak detecting circuit 8 is connected to a power source line 7 of an assembled battery unit drive circuit 1 through a first connecting line 21 to detect the leak. A forced energization circuit 9 also confirms the leak detecting action of the leak detecting circuit 8, by changing a potential of an output end of the leak detecting circuit 8 at detecting of the leak. The forced energization circuit 9 feeds a leak current for an inspection from one end of an external low voltage power source 3 to the assembled battery unit drive circuit 1 through a second connecting line 22 which is separated from the first connecting line 21.

16. 发明专利

JPH11135157A ALKALINE BATTERY CHARGING DEVICE 失效
公开(公告)号：JPH11135157A
公开(公告)日：1999-05-21
申请号：JP29751797
申请日：1997-10-29
申请人： NIPPON SOKEN , DENSO CORP
发明人： SAKAGAMI YUICHI , KAWAI TOSHIYUKI , KATO TOMOYA
IPC分类号： H01M10/44
摘要： PROBLEM TO BE SOLVED: To provide a charging device, capable of adequately charging an alkaline battery by accurately correcting a temperature heated by the charge of the alkaline battery with the temperature of a dummy calorific capacity body, even if the ambient temperature of the alkaline battery is changed sharply. SOLUTION: A dummy battery 20 is arranged in the vicinity of a nickel - hydrogen battery 11 in a battery circuit 10. A microcomputer 50 controls a drive circuit 60 and a charger 70, so that the battery circuit 10 is charged until the difference between a temperature detected with a temperature sensor 30 of the nickel - hydrogen battery 11, and a temperature detected with a temperature sensor 40 of the dummy battery 20 reaches the full charging temperature of the nickel - hydrogen battery 11.

17. 发明专利

JPH10288537A VARIABLE RELUCTANCE TYPE RESOLVER 失效
公开(公告)号：JPH10288537A
公开(公告)日：1998-10-27
申请号：JP9713697
申请日：1997-04-15
申请人： DENSO CORP
发明人： SASAKI SHINICHI , KATO TOMOYA
IPC分类号： G01B7/00 , G01B7/30 , G01D5/245 , H02K24/00
摘要： PROBLEM TO BE SOLVED: To provide a variable reluctance type resolver that is yet higher in measuring accuracy by reducing any measuring error attributable to a difference between both actual and theoretical numbers of turns in an output winding. SOLUTION: In this variable reluctance type resolver, having a linglike yoke 2 and plural pieces of tees 3 projecting in the centripetal direction from this yoke 2, and consisting of a stator 1 being wrapped with an exciting winding 5 and output windings 6 and 7 and an inductor type rotor 11, all the tees 3 are installed in an angular position where the theoretical number of turns of these output windings 6 and 7 are turned to a nearly integer. Since a difference between an actual number of turns (integral value) and the theoretical number of turns in these output windings 6 and 7 becomes lessened, any measuring error attributable to this difference is reduced, whereby such a variable reluctance type resolver as being yet higher in measuring accuracy is thus providable in this way.

18. 发明专利

JPH09163695A DRIVER FOR VEHICLE 失效
公开(公告)号：JPH09163695A
公开(公告)日：1997-06-20
申请号：JP31917095
申请日：1995-12-07
申请人： DENSO CORP
发明人： KAJIURA HIROAKI , SEGUCHI MASAHIRO , KATO TOMOYA
IPC分类号： B60K17/04 , B60K6/20 , B60K6/26 , B60K6/448 , B60K8/00 , B60L50/15 , B60L50/16 , F02D29/06 , H02K1/28 , H02K7/18 , H02K16/02 , B60K6/00 , B60L11/12 , B60L11/14
摘要： PROBLEM TO BE SOLVED: To provide a driver for vehicle comprising an electric rotating machine arranged concentrically in which a rotor structure for further reducing the size is realized. SOLUTION: In a T-S converter 1000 receiving the output from an internal combustion engine 100 and controlling a drive wheel 700 coupled therewith to produce a specified driving torque at a specified r.p.m., a first rotor 1210, a second rotor 1310 and a stator 1410 are arranged concentrically. The second rotor 1310 is constituted by sandwiching a rotor yoke 1311 comprising a laminate of a plurality of tubular electromagnetic steel plates between press plates 1335, 1336 (not shown), penetrating the rotor yoke 1311, and tightening the press plates 1335, 1336 by means of bolts 1333, 1334. This structure realizes a thin rotor yoke and further reduction in size of driver.

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