Supercharger assembly for regeneration of throttling losses and method of control
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-033/00
F02B-033/06
B60K-006/485
F02B-033/32
F02B-033/44
출원번호
US-0348303
(2012-09-28)
등록번호
US-9534531
(2017-01-03)
국제출원번호
PCT/US2012/057702
(2012-09-28)
국제공개번호
WO2013/049435
(2013-04-04)
발명자
/ 주소
Benjey, Robert Philip
Eybergen, William Nicholas
Vashisht, Roneesh
Pryor, Martin D.
출원인 / 주소
Eaton Corporation
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
2인용 특허 :
16
초록▼
An engine assembly is provided that includes an engine throttle and a supercharger placed in series with one another in air flow to the engine. The throttle and supercharger can be controlled so that throttling losses are selectively distributed across the throttle and/or the supercharger. Throttlin
An engine assembly is provided that includes an engine throttle and a supercharger placed in series with one another in air flow to the engine. The throttle and supercharger can be controlled so that throttling losses are selectively distributed across the throttle and/or the supercharger. Throttling losses placed across the supercharger can create torque that can be converted to stored energy.
대표청구항▼
1. An assembly for controlling air flow to an engine having a crankshaft, cylinders and a throttle in a throttle body positioned in air flow to the cylinders, the assembly comprising: a supercharger having a set of rotors in series with the throttle in the air flow to the engine;a load device; anda
1. An assembly for controlling air flow to an engine having a crankshaft, cylinders and a throttle in a throttle body positioned in air flow to the cylinders, the assembly comprising: a supercharger having a set of rotors in series with the throttle in the air flow to the engine;a load device; anda gear arrangement having a first member operatively connected with the load device, a second member operatively connectable with the crankshaft, and a third member operatively connectable with the supercharger, wherein the gear arrangement is a compounded, dual-planetary gear set having a first and a second ring gear member, a first and a second sun gear member, a common carrier member that supports a first set of pinion gears that mesh with the first ring gear member and the first sun gear member and supports a second set of pinion gears that mesh with the second ring gear member and the second sun gear member, wherein the first member operatively connectable with the load device is the first ring gear member; wherein the second member operatively connectable with the crankshaft is the first sun gear member, and wherein the third member operatively connectable with the supercharger is the second sun gear member;wherein the load device is selectively controllable to vary a speed of rotation of the rotors through the gear arrangement to thereby cause the throttle to open so that a pressure drop across the throttle shifts to the rotors, creating torque on the rotors, throttling losses thereby being regenerated. 2. The assembly of claim 1, further comprising a clutch controllable to move between a first position and a second position, wherein the clutch is operable to ground the third member with a stationary member when in the first position and to operatively connect the third member with the rotors when in the second position so that the torque on the rotors is provided to the load device through the gear arrangement when the clutch is in the second position. 3. The assembly of claim 2, wherein the clutch is a first clutch, and further comprising: a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary; anda third clutch selectively engageable to operatively connect the crankshaft with the second member;wherein at least a portion of the torque on the rotors is applied to the crankshaft through the gear arrangement when the first clutch is in the second position and the second and third clutches are engaged. 4. The assembly of claim 3, wherein the load device is a motor/generator operable to alternately function as a motor and as a generator; and further comprising: a controller configured to control the motor/generator to alternatively function as a motor and as a generator;wherein the motor/generator is controlled by the controller to function as a motor when the first clutch is in the first position, the second clutch is not engaged, and the third clutch is engaged, thereby applying torque to the crankshaft through the gear arrangement to start the engine. 5. The assembly of claim 2, wherein the clutch is a first clutch, and further comprising: a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary; anda third clutch selectively engageable to operatively connect the crankshaft with the second member;wherein the engine thereby drives the supercharger through the gear arrangement when the first clutch is in the second position and the second and third clutches are engaged. 6. The assembly of claim 1, wherein the load device is a motor/generator operable to selectively function as a motor or as a generator, and further comprising: a controller configured to control the motor/generator to alternatively function as a motor and as a generator;a first clutch controllable to move between a first position and a second position, wherein the first clutch is operable to ground the third member with a stationary member when in the first position and to operatively connect the third member with the rotors when in the second position;a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary; anda third clutch selectively engageable to operatively connect the crankshaft with the second member, the engine driving the supercharger through the gear arrangement to provide engine boost and the controller controlling the motor/generator to vary a speed of the third member to thereby vary the engine boost when the first clutch is in the second position, the third clutch is engaged, and the second clutch is not engaged. 7. The assembly of claim 1, further comprising: a first clutch controllable to move between a first position and a second position, wherein the first clutch is operable to ground the third member with a stationary member when in the first position and to connect the third member to rotate with the rotors when in the second position;a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary;a third clutch selectively engageable to operatively connect the crankshaft with the second member; anda controller;wherein the load device is a motor/generator operable, and the controller is configured to control the motor/generator selectively as a motor or as a generator; andwherein the motor/generator is controlled by the controller to function as a generator when the first clutch is in the first position, the second clutch is not engaged, and the third clutch is engaged to thereby provide torque from the crankshaft through the gear arrangement to the generator in a regenerative braking mode. 8. The assembly of claim 1, wherein the first member is a ring gear member, the second member is a carrier member, and the third member is a sun gear member. 9. The assembly of claim 8, wherein the load device is a motor/generator operable to alternately function as a motor and as a generator. 10. The assembly of claim 9, further comprising: a controller operatively connected to the motor/generator and configured to control the motor/generator to alternately function as a motor and as a generator; anda battery operatively connected to the controller and the motor/generator;wherein the throttle is open and the motor/generator is controlled to function as a generator to convert the torque on the rotors to energy stored in the battery during constant engine speeds when a state-of-charge of the battery reaches a predetermined first level and until the state-of-charge of the battery reaches a predetermined second level higher than the predetermined first level, and the throttle is less open and the motor/generator is controlled to function as a motor to provide torque at the crankshaft when the state-of-charge of the battery reaches the predetermined second level and until the state-of-charge of the battery again reaches the predetermined first level. 11. The assembly of claim 9, further comprising: a controller operatively connected to the motor/generator and configured to control the motor/generator to alternately function as a motor and as a generator; anda battery operatively connected to the controller and the motor/generator and configured to store energy converted from the torque on the rotors by the motor/generator when the motor/generator is controlled to function as a generator;wherein at least one vehicle electrical device is operatively connected to the battery and is configured to receive stored energy from the battery; andwherein a rate of energy stored in the battery that is converted from the torque at the rotors is equal to the rate of stored energy in the battery received as electrical power by said at least one vehicle electrical device. 12. An assembly for controlling air flow to an engine having a crankshaft, cylinders, and a throttle in a throttle body upstream in air flow to the cylinders, the assembly comprising: a supercharger having a set of rotors in series with the throttle in the air flow to the engine;a motor/generator operable to alternately function as a motor and as a generator;a controller configured to control the motor/generator to alternatively function as a motor and as a generator;a gear arrangement having a first member operatively connected with the motor/generator, a second member operatively connectable with the crankshaft, and a third member operatively connectable for rotation with the supercharger; anda battery operatively connected to the controller and the motor/generator and configured to store energy converted from the torque on the rotors by the motor/generator when the motor/generator is controlled to function as a generator, throttling losses thereby being regenerated as stored energy in the battery;wherein the motor/generator is selectively controllable to vary a speed of rotation of the rotors through the gear arrangement to thereby cause the throttle to open so that a pressure drop across the throttle shifts to the rotors, creating torque on the rotors;wherein the throttle is open and the motor/generator is controlled to function as a generator to convert the torque on the rotors to energy stored in the battery during constant engine speeds when a state-of-charge of the battery reaches a predetermined first level and until the state-of-charge of the battery reaches a predetermined second level higher than the predetermined first level, and wherein the throttle is less open and the motor/generator is controlled to function as a motor to provide torque at the crankshaft when the state-of-charge of the battery reaches the predetermined second level and until the state-of-charge of the battery again reaches the predetermined first level. 13. The assembly of claim 12, wherein the gear arrangement is a simple planetary gear set, and the first member is a ring gear member, the second member is a carrier member, and the third member is a sun gear member. 14. An assembly for controlling air flow to an engine having a crankshaft, cylinders and a throttle in a throttle body positioned in air flow to the cylinders, the assembly comprising: a supercharger having a set of rotors in series with the throttle in the air flow to the engine;a motor/generator operable to alternately function as a motor and as a generator;a gear arrangement having a first member operatively connected with the motor/generator, a second member operatively connectable with the crankshaft, and a third member operatively connectable with the supercharger; anda controller configured to control the motor/generator to alternatively function as a motor and as a generator;a first clutch;a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary; anda third clutch selectively engageable to operatively connect the crankshaft with the second member;wherein the clutch is controllable to move between a first position and a second position, wherein the clutch is operable to ground the third member with a stationary member when in the first position and to operatively connect the third member with the rotors when in the second position so that the torque on the rotors is provided to the motor/generator through the gear arrangement when the clutch is in the second position;wherein at least a portion of the torque on the rotors is applied to the crankshaft through the gear arrangement when the first clutch is in the second position and the second and third clutches are engaged. 15. The assembly of claim 14, further comprising: a controller configured to control the motor/generator to alternatively function as a motor and as a generator;a second clutch selectively engageable to operatively connect the first member to a stationary member, thereby holding the first member stationary; anda third clutch selectively engageable to operatively connect the crankshaft with the second member, the engine driving the supercharger through the gear arrangement to provide engine boost and the controller controlling the motor/generator to vary a speed of the third member to thereby vary the engine boost when the first clutch is in the second position, the third clutch is engaged, and the second clutch is not engaged. 16. The assembly of claim 14, wherein the first member is a ring gear member, the second member is a carrier member, and the third member is a sun gear member. 17. The assembly of claim 14, wherein the gear arrangement is a compounded, dual-planetary gear set having a first and a second ring gear member, a first and a second sun gear member, a common carrier member that supports a first set of pinion gears that mesh with the first ring gear member and the first sun gear member and supports a second set of pinion gears that mesh with the second ring gear member and the second sun gear member; and wherein the first member operatively connectable with the motor/generator is the first ring gear member; wherein the second member operatively connectable with the crankshaft is the first sun gear member, and wherein the third member operatively connectable with the supercharger is the second sun gear member.
Benjey, Robert P.; Eybergen, William N.; Tsourapas, Vasilios; Pryor, Martin D., Variable speed hybrid electric supercharger assembly and method of control of vehicle having same.
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