Current measuring apparatus for battery
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0826261
(2001-04-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Microchip Technology Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
6 |
초록
▼
An apparatus for measuring electrical energy passing to and from a battery post. The apparatus includes a resistor having a known resistance, a first conducting surface and a second conducting surface. The conducting surfaces are arranged such that current flow from a battery post will travel throug
An apparatus for measuring electrical energy passing to and from a battery post. The apparatus includes a resistor having a known resistance, a first conducting surface and a second conducting surface. The conducting surfaces are arranged such that current flow from a battery post will travel through the resistor from the first conducting surface to the second conducting surface, and current flow to the post travels through the resistor from the second to the first conducting surfaces. The energy measuring apparatus further includes a first lead electrically connected to the first conducting surface of the resistor, and a second lead electrically connected to the second conducting surface of the resistor.
대표청구항
▼
An apparatus for measuring electrical energy passing to and from a battery post. The apparatus includes a resistor having a known resistance, a first conducting surface and a second conducting surface. The conducting surfaces are arranged such that current flow from a battery post will travel throug
An apparatus for measuring electrical energy passing to and from a battery post. The apparatus includes a resistor having a known resistance, a first conducting surface and a second conducting surface. The conducting surfaces are arranged such that current flow from a battery post will travel through the resistor from the first conducting surface to the second conducting surface, and current flow to the post travels through the resistor from the second to the first conducting surfaces. The energy measuring apparatus further includes a first lead electrically connected to the first conducting surface of the resistor, and a second lead electrically connected to the second conducting surface of the resistor. from these signals in which case in the event of a fault the logic unit can provide independently of the signals of the drive unit of the drive control a respective drive signal for the current valves of a bridge arm used for armature short-circuiting. 5. The drive control of claim 1, wherein: a positive dynamic activation of two pulse inhibition paths is performed by reading back supply voltages for driving the first set of current valves of the upper bridge arm and the second set of current valves of the lower bridge arm, respectively, for pulse inhibition; and activating the means for pulse inhibition and the means for braking by armature short-circuiting for the case in which at least one of these read back supply voltages is lacking. 6. The drive control of claim 1, wherein a set of respective optocouplers serve to transmit drive signals to the first and second sets of current valves; and in the event of a fault supply voltage of the set of optocouplers associated with the respectively assigned bridge arm is interrupted by each means for pulse inhibition. 7. The drive control of claim 1, wherein a crosswise comparison of external tripping signals assigned to the respective means for pulse inhibition is performed by virtue of the fact that the two means for pulse inhibition are interconnected via a bi-directional communications interface, it being possible for both means for pulse inhibition to be tripped in event of deviating tripping signals. 8. The drive control of claim 7, wherein two signals for driving the logic unit are combined logically with the drive signals for the second set of current valves of the bridge arm serving the purpose of armature short-circuiting in such a way that with activation of the voltage for switching on all current valves of a bridge arm there is also activation of the drive signals for the current valves of the bridge arm serving the purpose of armature short-circuiting. 9. The drive control of claim 8, wherein the two signals for driving the logic unit normally conduct high level and a voltage for switching on all current valves of a bridge arm is suppressed by appropriate inverting driver stages of the logic unit, both signals changing to low level in the event of a fault such that inverting driver stages of the logic unit provide on output side a voltage for switching on all current valves of the bridge arm. 10. The drive control of claim 9, wherein: each current valve is switched by an associated drive signal of the drive unit of the drive control with low level; and the logic unit combines the two signals to drive them via a logic AND gate, this logic signal respectively serving the purpose of further combination via respective further AND gates with the respective drive signals for the current valves of the bridge arm serving the purpose of armature short-circuiting. al representative of the average current in the self-inductive element, and wherein the averaging circuit includes a transistor (T2) including a gate electrode that receives a switching signal in order to switch said transistor in opposition with said control device (PT), the drain electrode of said transistor (T2) receives a signal representative of the voltage at the terminals of said first resistive element (Rs), and the source electrode of said transistor (T2), which constitutes an output of a signal (Vm) representative of said average current (Im), is connected to a capacitive element (Cm) in parallel with a second resistive element (Rm). 2. Device according to claim 1, wherein the drain electrode of the transistor (T2) is connected to a common terminal (E) between the first resistor (Rs) and the diode (D) via a divider bridge (Rc1,Rc2). 3. Device according to claim 2, wherein the divider bridge (Rc1,Rc2) has a first end connected to said common terminal (B), a second end connected to a voltage source, and a midpoint (P) connected to said drain electrode of the transistor (T2), the voltage of said voltage source being chosen in such a way that the voltage at said midpoint (P) of the divider bridge (Rc1,Rc2) has a positive or zero value.
이 특허에 인용된 특허 (6)
-
Takahashi Susumu,JPX, Apparatus for monitoring power of battery to supply electric power to load.
-
Sakai Shoji (Nishio JPX) Inagaki Mitsuo (Nishio JPX) Onimaru Sadahisa (Nishio JPX) Asa Hironori (Nishio JPX), Battery power monitoring apparatus for vehicle.
-
Timmons John B. ; Koss Edward F., Terminal post assembly for lead acid batteries.
-
Maeda Toshifumi,JPX ; Tanaka Hiroshi,JPX, Touch-panel input device.
-
Makhija Surender K. (21370 Lower Cambridge Cir. Brookfield WI 53045), Vehicle current drain tester with memory saver.
-
Bramwell Denton M., Vehicle starting battery cold-cranking AMPS meter and method.
이 특허를 인용한 특허 (8)
-
Richter, Gerolf; Streuer, Peter; Sielemann, Olaf; Schirmer, Hans-Heinrich, Battery cover.
-
Batson,David C., Battery cover assembly having integrated battery condition monitoring.
-
Batson,David C., Battery cover assembly having integrated battery condition monitoring.
-
Ferre Fabregas, Antoni; Fernandez Bañares, Jose Gabriel, Battery monitoring system.
-
Rubio, Josep Maria Roset, Battery monitoring system.
-
Roset,Josep M.; Aparicio,Enric, Battery post connector.
-
Roset,Josep Maria; Lopez,Ramon Pinana, Battery post connector.
-
Alvarez-Troncoso, Ignacio; Roset, Josep Maria, Energy management system for a vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.