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1. 发明专利

JPH03158781A METHOD FOR ESTIMATING RESIDUAL CAPACITY OF SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH03158781A
公开(公告)日：1991-07-08
申请号：JP29668389
申请日：1989-11-15
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： KUSAKABE KOJI , KAWAMOTO HIROYUKI , HATOU HISAMITSU , YASUJIMA HIROMI , OSHIMA MASAAKI , FUJIWARA NOBORU
IPC分类号： G01R31/36
摘要： PURPOSE:To enhance estimation accuracy by obtaining the number of defectless series units from a difference between the series-parallel units of discharge depths, adding the correction by the total number of the series unit to the energization quantity of a set battery with the discharge depth as a beginning point and calculating the respective discharge depths. CONSTITUTION:The set battery 8 is housed into a heat insulating box 10 where the series-parallel units 6 are connected in series. A voltmeter 14 measures the voltage across the units 6 and an ammeter 16 measures the current flowing in external terminals 12a, 12b. The electromotive force E of the units 6 is estimated from a change with time, of the voltage of the units 6 right after the stop of the charge and discharge and the discharge depth D of the units 6 is obtd. by collating the electromotive force E and the theoretical value. The number K of the defectless series units of the units 6 is obtd. by making comparison with depths D each other between the units 6. The charging and discharging current quantity Ah of the battery 8 is obtd. by integrating the current value measured by the ammeter 16 with time and can be referenced at all time. The residual capacity R of the battery 8 is calculated from the max. of the depth D of the units 6, the number K of the units and the number K of the units of the battery 8.

2. 发明专利

JPH05116545A MOTOR-DRIVEN WHEEL FOR ELECTRIC CAR 失效
公开(公告)号：JPH05116545A
公开(公告)日：1993-05-14
申请号：JP28183091
申请日：1991-10-29
申请人： TOKYO ELECTRIC POWER CO , TOKYO R & D KK
发明人： YAMAMOTO TAKAHIKO , NATORI KAZUO , FUJIWARA NOBORU , ONO MASARO , MAMIYA ATSUSHI , UMEMURA KATSUMI
IPC分类号： B60K7/00 , B62M7/12
摘要： PURPOSE:To enhance the controllability of an electric car by removing the part of a motor portion protruding outside of the outside edge of a wheel rim so as to make the motor portion look better and reduce damaging of the motor, and reducing the offset of a king pin. CONSTITUTION:A wheel disk 1 is freely rotatably installed around the outer periphery of a hollow axle shaft 4 and is so formed to be recessed inward of the axle shaft 4 past a vehicle center line P-Q. Each of the components of a motor is installed near the inside of the axle shaft 4 by utilizing this recessed form and all of the components of the motor are stored inside of the respective outside edges of a wheel rim 8 and a tire 20. A brake disk 10 is mounted on the wheel disk 1 via an adaptor 9 so that a dead space 26 is formed between the brake disk 10 and the wheel disk 1. A ball joint 13 serving as the supporting point of a lower arm 15 is provided by utilizing the dead space 26 so that the offset L of a king pint is reduced.

3. 发明专利

JPH05341023A 失效
公开(公告)号：JPH05341023A
公开(公告)日：1993-12-24
申请号：JP17615892
申请日：1992-06-10
申请人： MITSUBISHI MOTORS CORP , TOKYO ELECTRIC POWER CO
发明人： KUMAGAI NAOTAKE , TATEMOTO MINORU , SUZUKI HIROYASU , NATORI KAZUO , FUJIWARA NOBORU
IPC分类号： G01R31/36
摘要： PURPOSE:To calculate the residual capacity with high precision in which the capacity decrement due to self-discharge is taken into account by calculating presumptive]y the self-discharging amount from the calculated residual capacity of the battery and its temperature. CONSTITUTION:An ammeter 4 and temp. sensor 5 to measure the discharge current I and temp. T, respectively, of a Ni-Cd battery 3 and also an ignition switch 6, which senses if electric vehicle is in parking, are connected with a residual capacity meter 1. The data of residual capacity A when the battery 3 is charged fully is assumed as 100%, and the current I and temp. T are sampled, for example at 10msec. intervals. If it is in discharged (charged) condition being judged from the current direction, the electric quantity measured at this time is cumulated on the discharge (charge) electric quantity cumulative value B(C), and this cycle is repeated, for example for 60sec. If the ignition switch 6 is put off and the car is in parking, the self-discharge electric quantity D is calculated presumatively from the capacity A and temp. T. The cumulative values B, C are subtracted/added from/to the capacity A, followed by subtracting of the electric quantity D, to determine a new capacity A.

4. 发明专利

JPH05341022A 失效
公开(公告)号：JPH05341022A
公开(公告)日：1993-12-24
申请号：JP17615792
申请日：1992-06-10
申请人： MITSUBISHI MOTORS CORP , TOKYO ELECTRIC POWER CO
发明人： KUMAGAI NAOTAKE , TATEMOTO MINORU , SUZUKI HIROYASU , NATORI KAZUO , FUJIWARA NOBORU
IPC分类号： G01R31/36
摘要： PURPOSE:To calculate the residual capacity of a battery precisely independently from the degree of deterioration of the battery by determining the rate of electric discharge corresponding to the internal resistance determined from the battery voltage and the discharge current, and presuming and calculating the residual capacity. CONSTITUTION:A residual capacity meter 1 measures the terminal voltage of a Ni-Cd battery 3, and the resultant is subjected to a computation process with the discharge current value measured by an ammeter 4. Therein the data of residual capacity A when the battery 3 is charged fully is assumed as 100%, and the current I and terminal voltage V are sampled, for example at 10-msec intervals, If it is in discharged condition when judged from the current direction, the electric quantities measured at this time are cumulated on the discharge electric quantity cumulation value B, and this cycle is repeated, for example for 60sec. If the measured current I is large (for example, I>=50A) and the capacity A is for example below 40%, the internal resistance of the battery is calculated from the current I and voltage V, and the residual capacity A' is calculated presumatively from the rate of discharge corresponding to the obtained internal resistance. If there is an error for example exceeding 10Ah between the two capacity values A' and A, a correction is made to change the capacity A to A'.

5. 发明专利

JPH05116546A WHEEL MOTOR 失效
公开(公告)号：JPH05116546A
公开(公告)日：1993-05-14
申请号：JP28238791
申请日：1991-10-29
申请人： TOKYO ELECTRIC POWER CO , TOKYO R & D KK
发明人： YAMAMOTO TAKAHIKO , NATORI KAZUO , FUJIWARA NOBORU , ONO MASARO , ONUMA NOBUTO , SAKASHITA YOSHIYUKI
IPC分类号： B60K7/00 , B62M7/12 , H02K29/00 , H02K29/14
摘要： PURPOSE:To provide a wheel motor which constitutes a direct drive unit, especially outer rotor type, of an electric car. CONSTITUTION:A cone 5 has a hollow structure which is outwardly open with its bore enlarged and an encoder 17 for monitoring rotation of a motor is installed within the hollow portion of the cone 5 and an adjustor plate 31 is mounted on a motor outer cover 19 in such a manner that the angle of rotation of the plate 31 can be freely adjusted and the shaft 17a of the encoder 17 is connected to the adjustor plate 31 by a coupling shaft 30. The encoder 17 for monitoring rotation of the motor does thus not protrude outside of a wheel disk 1 and so the appearance of the motor is good and the danger of the encoder portion being damaged or damaging other components is eliminated. Also, the angle of rotation of the motor and the phase of the angle of rotation of the encoder 17 can both be readily adjusted from the outside by means of adjustment of the adjustor plate 31.

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