IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0231795
(2008-09-05)
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등록번호 |
US-7806796
(2010-10-26)
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발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
1 |
초록
▼
A power device for motor vehicles installed on a motor vehicle with an internal combustion engine is composed of a first variable displacement hydraulic activator (107), a second variable displacement hydraulic activator (108), a planetary gear mechanism (103) and a mechanical transmission (104). Th
A power device for motor vehicles installed on a motor vehicle with an internal combustion engine is composed of a first variable displacement hydraulic activator (107), a second variable displacement hydraulic activator (108), a planetary gear mechanism (103) and a mechanical transmission (104). The power device further includes a hydraulic control device (109) and an electronic control device (112) which are used to control the first and second variable displacement hydraulic activators. The control device may carry out the following controls, that is, during the period when the engine outputs power, part of mechanical energy is converted into electric energy via the motor to be stored in the chargeable cell when the power requirement from the motor vehicle increases.
대표청구항
▼
The invention claimed is: 1. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power o
The invention claimed is: 1. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device, wherein the mechanical transmission mechanism comprises a parallel two or more stage shifting gear pairs; between the two or more stage shifting gear pairs and the output side of the planetary gear mechanism is respectively provided with an overrunning clutch; and between the parallel two or more stage shifting gear pairs is respectively provided with a second clutching device; the overrunning clutch and the second clutching device adjust the transmission ratios of the mechanical transmission mechanism through clutching action, respectively. 2. The power device for motor vehicles of claim 1, wherein the single row planetary gear mechanism comprises a sun gear, a planetary gear and planet carrier, and a ring gear, wherein the sun gear is the control terminal. 3. The power device for motor vehicles of claim 1, wherein the planetary gear mechanism comprises two rows of planetary gear mechanisms in serial. 4. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device, wherein the hydraulic control device has a first electromagnetic directional valve connected to a high pressure oil port of the first variable displacement hydraulic actuator and a second electromagnetic directional valve connected to a high pressure oil port of the second variable displacement hydraulic actuator; the first electromagnetic directional valve communicates the high pressure oil port of the first variable displacement hydraulic actuator with hydraulic lines which are directly connected to the oil tank or with hydraulic lines which are connected to the second electromagnetic directional valve in response to the control signals from the electronic control device; the second electromagnetic directional valve communicates the high pressure oil port of the second variable displacement hydraulic actuator with hydraulic lines which are directly connected to the oil tank or with hydraulic lines which are connected to the first electromagnetic directional valve in response to the control signals from the electronic control device, wherein the high pressure oil ports of the first variable displacement hydraulic actuator and the second variable displacement hydraulic actuator are connected to the oil tank via hydraulic lines and a relief valve, low pressure oil ports of the first variable displacement hydraulic actuator and the second variable displacement hydraulic actuator are connected via hydraulic lines and are connected to the oil tank via a heat sink, wherein oil relief ports of the first and second variable displacement hydraulic actuators are each connected to the oil tank via a filter. 5. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device; wherein the first variable displacement hydraulic actuator and the second variable displacement hydraulic actuator are connected to a hydraulic energy storage via said hydraulic control device; the hydraulic energy storage can not only absorb and store hydraulic energy output from the first variable displacement hydraulic actuator and/or the second variable displacement hydraulic actuator; but also output hydraulic energy to the first variable displacement hydraulic actuator and/or the second variable displacement hydraulic actuator; wherein the power device for motor vehicles further comprises a hydraulic power assisted steering device, a hydraulic power assisted braking device and a hydraulic motor driven air conditioner, wherein a high pressure oil input of the hydraulic power assisted steering device is connected to the hydraulic energy storage. 6. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device, wherein the electronic control device is connected to a position sensor which measures a position parameter of an ignition switch of the motor vehicle, a position sensor which measures a position parameter of the accelerator pedal, a position sensor which measures the position parameter of a mechanical braking pedal, displacement sensors which measure displacement parameters of the first and second variable displacement hydraulic actuators, a pressure sensor which measures a pressure of lubricant, a temperature sensor which measures temperature of cooling water in the engine, an automobile velocity sensor which measures a parameter of the motor vehicle velocity and an engine rotation speed sensor which measures a parameter of the engine rotation speed; a universal characteristic profile of the engine is stored in the electronic control device. 7. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device; and an electric motor/generator which is connected to the planetary gear mechanism in the power device for motor vehicles, the electric motor/generator being connected to a chargeable battery cell via a motor/generator controller; the chargeable battery cell is connected to an onboard cell manager; and the motor controller and the onboard battery cell manager control the motor/generator and the chargeable battery cell, respectively, in response to the control signals from the electronic control device. 8. The power device for motor vehicles of claim 7, wherein the electronic control device can carry out the following controls, whereby when the engine outputs power, a portion of mechanical energy from the engine is converted into electric energy via the electric motor/generator to be stored in the chargeable battery cell; when the power requirement from the motor vehicle increases, the electric motor/generator is controlled via the electric motor/generator controller to convert battery cell's electric energy into mechanical power, in this way to assist the engine to drive the motor vehicle to travel; or alternatively, during a stop and go period let the engine stop outputting power, the electric motor/generator is controlled to output mechanical power to drive the motor vehicle to travel. 9. A power device for motor vehicles, comprising: a planetary gear mechanism, which has an input side, an output side and a control terminal, wherein the input side is connected to an output shaft of the motor vehicle's engine, and the output side is connected to a power output shaft of the power device for motor vehicles via a mechanical transmission mechanism; a first variable displacement hydraulic actuator, which is connected to the control terminal of the planetary gear mechanism and is connected to an oil tank via hydraulic lines; a second variable displacement hydraulic actuator, a rotation shaft of which is connected to the power output shaft of the power device for motor vehicles, and which performs power input or output via the power output shaft and is connected to the first variable displacement hydraulic actuator and the oil tank via hydraulic lines, respectively; an electronic control device, which collects operation parameters of the motor vehicle and control parameters over the motor vehicle, and output control signals according to these parameters; the first and second variable displacement hydraulic actuators carry out variable displacement adjustments in response to the control signals from the electronic control device; a hydraulic control device, which is arranged on the hydraulic lines and controls the operating states of the first and second variable displacement hydraulic actuators in response to the control signals from the electronic control device; wherein the hydraulic control device comprises of a first electromagnetic directional valve connected to a high pressure oil port of the first variable displacement hydraulic actuator and a second electromagnetic directional valve connected to a high pressure oil port of the second variable displacement hydraulic actuator; the first electromagnetic directional valve communicates the high pressure oil port of the first variable displacement hydraulic actuator with hydraulic lines which are directly connected to the oil tank or with hydraulic lines which are connected to the second electromagnetic directional valve in response to the control signals from the electronic control device; the second electromagnetic directional valve communicates the high pressure oil port of the second variable displacement hydraulic actuator with hydraulic lines which are directly connected to the oil tank or with hydraulic lines which are connected to the first electromagnetic directional valve in response to the control signals from the electronic control device, wherein the electronic control device can carry out the following controls, that is, when the motor vehicle is started and accelerated and an accelerator pedal is stepped on, the electronic control device controls the first electromagnetic directional valve and the second electromagnetic directional valve to communicate the hydraulic lines of the first and second hydraulic actuators, and cooperatively adjusts an engine throttle; the electronic control device obtains a value of the engine output torque from a universal characteristic profile of the engine according to the opening degree of the throttle and the rotation speed of the engine, calculates a torque of a sun gear according to torque relationship equations for the planetary gear mechanism, calculates a displacement value of the first hydraulic actuator under a rating pressure; the electronic control device outputs signals to control the variable displacement mechanism of the first hydraulic actuator, and the first variable displacement hydraulic actuator outputs pressurized oil accordingly, the rotation shaft of the second variable displacement hydraulic actuator is driven to rotate and output torque, the output of the rotation shaft amounts to the sum of a driving torque of the planetary gear mechanism and the torque output from a hydraulic motor; the motor vehicle is accelerated, and the displacement of the second hydraulic actuator is automatically controlled by the pressure at the high pressure oil port, that is, its displacement increases if the pressure increases and decreases if the pressure decreases, and when the pressure is 0, the displacement is 0, wherein when the motor vehicle velocity reaches a predetermined value, the hydraulic control device performs the following controls, that is, the second electromagnetic directional valve is controlled such that the second variable displacement hydraulic actuator is directly connected to the oil tank and thus the connection to the first variable displacement hydraulic actuator is disconnected, in this way, the first variable displacement hydraulic actuator is braked, and the control terminal of the planetary gear mechanism is locked and the planetary gear mechanism performs transmission at a fixed speed ratio; or the hydraulic control device controls the clutching device in the planetary gear mechanism such that the planetary gear mechanism performs transmission as a rigid body.
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