Oil way control system and vehicle

Abstract

The utility model discloses an oil way control system and a vehicle. The oil way control system comprises an oil supply system, a control system and a control system, the first oil way is provided with a clutch, and a first oil inlet of the first oil way is connected to the oil supply system; a second oil inlet of the second oil way is connected to an oil supply system, and the second oil way is selectively communicated with the first oil way. The first oil way and the second oil way are selectively communicated, when the clutch execution pump in the first oil way breaks down, oil in the second oil way can be shunted into the first oil way, normal work of the clutch can be guaranteed, the problem that the clutch cannot be combined after the clutch execution pump and related assemblies of the clutch execution pump fail can be solved, and the clutch reliability is improved. The maximum availability of the power of the whole vehicle is achieved, and the robustness of product design function implementation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle control, in particular to an oil circuit control system and a vehicle. Background Art

[0002] In related technologies, there are usually two forms to achieve flow distribution for the hydraulic flow supply in a gearbox. The first is to supply system flow through a mechanical pump or an electronic pump, establish the pressure of a fixed main oil circuit, adjust the pressure of the clutch oil circuit through the opening degree of a proportional solenoid valve, and then achieve the engagement and separation of the clutch. The flow distribution of the shift oil circuit / lubricating oil circuit is adjusted through the opening degree of other proportional solenoid valves. The second is to directly supply oil to the clutch oil circuit through an electronic pump. There are fixed-opening oil drain holes designed in the oil circuit. The pressure of the clutch oil circuit is adjusted by adjusting the rotational speed of the electronic pump to achieve the engagement and separation of the clutch. Another electronic pump directly supplies flow to the lubricating oil circuit. There are corresponding oil drain holes designed at each position in the oil circuit. The pressure of the clutch oil circuit is adjusted by adjusting the rotational speed of the electronic pump to achieve the adjustment of the lubricating flow.

[0003] However, when the clutch actuator motor fails, the clutch cannot be engaged, and the engine is not supported to intervene in power, resulting in the problem that the whole vehicle cannot be started. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an oil circuit control system, which can ensure the normal operation of the clutch, solve the problem that the clutch cannot be engaged after the clutch actuator pump and its related components fail, and achieve the maximum availability of the power of the whole vehicle.

[0005] The utility model further provides a vehicle.

[0006] The oil circuit control system according to the first aspect embodiment of the utility model includes: an oil supply system; a first oil circuit, on which a clutch is provided, and a first oil inlet of the first oil circuit is connected to the oil supply system; a second oil circuit, a second oil inlet of the second oil circuit is connected to the oil supply system, and the second oil circuit is selectively communicated with the first oil circuit.

[0007] According to the oil circuit control system of the embodiment of the utility model, by selectively communicating between the first oil circuit and the second oil circuit, when the clutch actuator pump in the first oil circuit fails, the oil in the second oil circuit can be diverted to the first oil circuit, which can ensure the normal operation of the clutch, solve the problem that the clutch cannot be engaged after the clutch actuator pump and its related components fail, achieve the maximum availability of the power of the whole vehicle, and improve the robustness of the product design function realization.

[0008] According to some embodiments of the present utility model, it further includes: a first control valve, and the first control valve is connected between the first oil circuit and the second oil circuit.

[0009] According to some embodiments of the present utility model, there are multiple first oil circuits, and each first oil circuit is connected to the second oil circuit through the first control valve.

[0010] According to some embodiments of the present utility model, the second oil circuit is any one of a lubricating oil circuit, a shifting oil circuit, and a braking oil circuit.

[0011] According to some embodiments of the present utility model, the oil supply system includes: a first oil pressure pump; a third oil sump; a first suction filter, one end of the first oil pressure pump is connected to one end of the first suction filter, the other end of the first oil pressure pump is connected to the third oil sump, and the other end of the first suction filter is connected to the first oil sump.

[0012] According to some embodiments of the present utility model, the second oil circuit includes: a second oil sump, and the third oil sump is configured to overflow to the second oil sump when the internal oil reaches a predetermined height.

[0013] According to some embodiments of the present utility model, the first oil sump is a clutch oil sump; and / or, the second oil sump is a transmission oil sump.

[0014] According to some embodiments of the present utility model, a clutch actuating pump is provided on the first oil circuit, the clutch actuating pump is connected between the first oil inlet and the clutch, and the clutch actuating pump is configured to discharge the oil in the clutch into the first oil sump through the throttle orifice of the clutch.

[0015] According to some embodiments of the present utility model, a second suction filter and a second oil pressure pump are provided on the second oil circuit, one end of the second suction filter is connected to the second oil inlet, the other end of the second suction filter is connected to one end of the second oil pressure pump, and a part of the oil circuit at the other end of the second oil pressure pump is selectively communicated with the first oil circuit.

[0016] A vehicle according to an embodiment of the second aspect of the present utility model includes the above-mentioned oil circuit control system.

[0017] Compared with the prior art, the beneficial technical effects of the present utility model are: by selectively communicating between the first oil circuit and the second oil circuit, when the clutch actuating pump in the first oil circuit fails, the oil in the second oil circuit can be diverted into the first oil circuit, which can ensure the normal operation of the clutch, solve the problem that the clutch cannot be engaged after the clutch actuating pump and its related components fail, realize the maximum availability of the power of the whole vehicle, and improve the robustness of the product design function.

[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic structural diagram of an oil circuit control system according to an embodiment of the present utility model.

[0021] REFERENCE SIGNS:

[0022] 1, fuel supply system; 11, first oil pressure pump; 12, third oil sump; 13, first suction strainer; 14, first oil sump; 2, first oil circuit; 21, clutch; 22, first oil inlet; 23, clutch actuator pump; 24, throttle orifice; 25, third suction strainer; 26, pressure sensor; 3, second oil circuit; 31, second oil inlet; 32, second oil sump; 33, second suction strainer; 34, second oil pressure pump; 35, pressure filter; 4, first control valve; 5, second control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary. Embodiments of the present utility model will be described in detail below.

[0024] Reference will be made below Figure 1 to describe an oil circuit control system according to an embodiment of the present utility model.

[0025] In existing transmissions, there are usually two forms to achieve flow distribution for hydraulic flow supply. The first is to supply system flow through a mechanical pump or an electronic pump, establish the pressure of a fixed main oil circuit, regulate the pressure of the clutch oil circuit by the opening degree of a proportional solenoid valve, and thus achieve the engagement and separation of the clutch. The flow distribution of the shift oil circuit / lubricating oil circuit is regulated by the opening degree of other proportional solenoid valves. The second is to directly supply oil to the clutch oil circuit through an electronic pump. There are fixed-opening oil drain holes designed in the oil circuit. The pressure of the clutch oil circuit is regulated by adjusting the rotational speed of the electronic pump to achieve the engagement and separation of the clutch. Another electronic pump directly supplies flow to the lubricating oil circuit. There are oil drain holes corresponding to each position in the oil circuit. The pressure of the clutch oil circuit is regulated by adjusting the rotational speed of the electronic pump to achieve lubricating flow regulation. However, when the clutch actuator motor fails, the clutch cannot be engaged, and the engine is not supported to intervene in the power, resulting in the vehicle being unable to start.

[0026] Therefore, the present utility model proposes an oil circuit control system to solve the above technical problems.

[0027] As Figure 1 shown, the oil circuit control system includes: an oil supply system 1, a first oil circuit 2, and a second oil circuit 3.

[0028] A clutch 21 is provided on the first oil circuit 2, and a first oil inlet 22 of the first oil circuit 2 is connected to the oil supply system 1. In other words, the first oil circuit 2 is the oil circuit of the clutch 21, and is adapted to supply oil to the clutch 21 to engage or disengage the clutch 21, ensuring the normal operation of the clutch 21.

[0029] A second oil inlet 31 of the second oil circuit 3 is connected to the oil supply system 1, and the second oil circuit 3 is selectively communicated with the first oil circuit 2.

[0030] That is to say, the first oil circuit 2 and the second oil circuit 3 originate from the same oil supply system 1, and the oil supply system 1 can realize the flow distribution of each required oil circuit. Moreover, the second oil circuit 3 is selectively communicated with the first oil circuit 2, that is, the first oil circuit 2 and the second oil circuit 3 are not completely independent separated oil circuits, and the two can realize mutual replenishment.

[0031] Specifically, when a clutch actuator pump 23 in the first oil circuit 2 fails, by communicating the first oil circuit 2 and the second oil circuit 3, the oil in the second oil circuit 3 can be diverted to the first oil circuit 2, which can ensure the normal operation of the clutch 21, and further support the engine to intervene in power and realize the normal start of the whole vehicle. Or, when a second oil pressure pump 34 in the second oil circuit 3 fails, the oil in the first oil circuit 2 can be diverted to the second oil circuit 3, so as to ensure the oil supply demand of the second oil circuit 3.

[0032] It should be noted that the second oil circuit 3 can be any existing oil circuit in the oil circuit control system in the prior art, such as a lubricating oil circuit, as long as it can meet the oil replenishment of the oil circuit of the clutch 21.

[0033] Thus, by selectively communicating the first oil circuit 2 and the second oil circuit 3, when the clutch actuator pump 23 in the first oil circuit 2 fails, the oil in the second oil circuit 3 can be diverted to the first oil circuit 2, which can ensure the normal operation of the clutch 21, and further support the engine to intervene in power and realize the normal start of the whole vehicle. Moreover, the oil in the first oil circuit 2 can also be diverted to the second oil circuit 3, so as to ensure the oil supply demand of the second oil circuit 3.

[0034] Furthermore, the oil circuit control system further includes: a first control valve 4, and the first control valve 4 is connected between the first oil circuit 2 and the second oil circuit 3.

[0035] With such a setting, by the first control valve 4 being arranged between the first oil passage 2 and the second oil passage 3, the on-off between the first oil passage 2 and the second oil passage 3 can be achieved. Generally, the first control valve 4 is in a normally closed state. When the clutch execution pump 23 in the first oil passage 2 fails, the first control valve 4 conducts the first oil passage 2 and the second oil passage 3, and the oil in the second oil passage 3 can be diverted into the first oil passage 2 to ensure the normal operation of the clutch 21 in the first oil passage 2.

[0036] According to some embodiments of the present invention, the first control valve 4 is a one-way valve, that is, the inlet of the first control valve 4 is connected to the second oil passage 3, and the outlet of the first control valve 4 is connected to the first oil passage 2. In this way, when the clutch execution pump 23 fails, the second oil passage 3 supplies oil to the first oil passage 2, so as to ensure the oil supply requirement of the clutch 21.

[0037] According to some embodiments of the present invention, there are multiple first oil passages 2, and each first oil passage 2 is connected to the second oil passage 3 through the first control valve 4.

[0038] With such a setting, a clutch execution pump 23 is provided on each first oil passage 2, and multiple first oil passages 2 are connected to the second oil passage 3 through the first control valve 4. When the clutch execution pump 23 on any one of the first oil passages 2 fails, by controlling the first control valve 4 between the first oil passage 2 and the second oil passage 3, the oil in the second oil passage 3 can be supplied to the first oil passage 2.

[0039] In the embodiment of the present invention, there are two first oil passages 2, and a clutch 21 is provided on each first oil passage 2. By the engagement or separation of the two clutches 21, the normal start of the vehicle and the normal gear shifting of the transmission are achieved. Among them, one of the two clutches 21 is an odd clutch 21, and the other is an even clutch 21.

[0040] According to some embodiments of the present invention, the second oil passage 3 is any one of a lubricating oil passage, a shifting oil passage, and a braking oil passage.

[0041] That is to say, when the clutch execution pump 23 in the first oil passage 2 fails, the lubricating oil passage can supply oil to the first oil passage 2, the shifting oil passage can also supply oil to the first oil passage 2, and the braking oil passage can also supply oil to the first oil passage 2. Of course, the second oil passage 3 is not limited to this.

[0042] According to some embodiments of the present invention, the oil supply system 1 includes: a first oil pressure pump 11, a third oil sump 12, and a first suction filter 13. One end of the first oil pressure pump 11 is connected to one end of the first suction filter 13, the other end of the first oil pressure pump 11 is connected to the third oil sump 12, and the other end of the first suction filter 13 is connected to the first oil sump 14.

[0043] With such an arrangement, the first oil sump 14 stores oil inside. The oil inside the first oil sump 14 is filtered by the first suction filter 13 and then transmitted to the third oil sump 12 through the first oil pressure pump 11. The third oil sump 12, as the oil supply device for the first oil circuit 2 and the second oil circuit 3, can transmit the internal oil to the first oil circuit 2 and the second oil circuit 3 to ensure the reasonable distribution of oil resources and the supply demand.

[0044] In some embodiments, the first oil pressure pump 11 is a mechanical pump.

[0045] According to some embodiments of the present invention, the second oil circuit 3 includes: a second oil sump 32, and the third oil sump 12 is configured to overflow to the second oil sump 32 when the internal oil reaches a predetermined height.

[0046] With such an arrangement, when the oil in the third oil sump 12 reaches a certain height, it overflows into the second oil sump 32, so that the second oil sump 32 stores a certain amount of oil for the oil demand in the second oil circuit 3.

[0047] According to some embodiments of the present invention, the first oil sump 14 is a clutch 21 oil sump; and / or, the second oil sump 32 is a transmission oil sump.

[0048] With such an arrangement, the clutch 21 oil sump serves as the overall oil supply device, and the transmission oil sump serves as the oil supply device for the second oil circuit 3. Through the two oil supply devices, the reasonable distribution of oil resources and the supply demand can be ensured.

[0049] According to some embodiments of the present invention, a clutch actuator pump 23 is provided on the first oil circuit 2. The clutch actuator pump 23 is connected between the first oil inlet 22 and the clutch 21, and the clutch actuator pump 23 is configured to discharge the oil in the clutch 21 into the first oil sump 14 through the throttle orifice 24 of the clutch 21.

[0050] Specifically, the clutch actuator pump 23 refers to an electronically controlled clutch actuator pump driven by an electric motor, which generates oil pressure to realize the engagement and separation actions of the clutch 21. Among them, in this embodiment, the clutch actuator pump 23 on one first oil circuit 2 discharges the control oil of the odd-numbered clutch 21 into the first oil sump 14 through the throttle orifice 24, and the clutch actuator pump 23 on the other first oil circuit 2 discharges the control oil of the even-numbered clutch 21 into the first oil sump 14 through the throttle orifice 24 to meet the oil pressure demand of the clutch 21.

[0051] Furthermore, a pressure sensor 26 is provided on the first oil circuit 2, and the pressure sensor 26 is used to monitor the pressure of the clutch 21.

[0052] With such a setting, based on the feedback signal of the pressure sensor 26, the rotational speed of the electronic pump of the clutch 21 can be adjusted in a timely manner, and two clutch actuating pumps 23 can be controlled to discharge the control oil of the odd clutch 21 to the first oil pan 14 through the throttle orifice 24, and the control oil of the even clutch 21 by the clutch actuating pump 23 is discharged to the first oil pan 14 through the throttle orifice 24.

[0053] According to some embodiments of the present invention, a second oil filter 33 and a second oil pressure pump 34 are provided on the second oil passage 3. One end of the second oil filter 33 is connected to the second oil inlet 31, the other end of the second oil filter 33 is connected to one end of the second oil pressure pump 34, and a part of the oil passage at the other end of the second oil pressure pump 34 is selectively communicated with the first oil passage 2.

[0054] With such a setting, the oil in the second oil pan 32 is filtered by the second oil filter 33 and then transmitted into the second oil passage 3 through the second oil pressure pump 34. When the second oil passage 3 is a lubricating oil passage, the oil at the rear end of the second oil pressure pump 34 can enter the lubrication system after further filtration by the pressure filter 35. Among them, the pressure filter 35 performs secondary filtration on the oil.

[0055] According to some embodiments of the present invention, a third oil filter 25 is provided on the first oil passage 2. One end of the third oil filter 25 is connected to the first oil inlet 22, and the other end of the third oil filter 25 is connected to the clutch actuating pump 23. With such a setting, the oil distribution in the third oil pan 12 is filtered by two third oil filters 25 and then enters the clutch actuating pumps 23 in their respective first oil passages 2, and the oil of the two clutch actuating pumps 23 respectively controls the engagement and separation of the odd clutch 21 and the even clutch 21.

[0056] The first oil filter 13, the second oil filter 33 and the third oil filter 25 filter the oil to ensure the cleanliness of the oil.

[0057] In addition, a second control valve is further included on the second oil passage 3. One end of the second control valve is connected to the rear end of the second oil pressure pump 34, and the other end of the second control valve is connected to the front end of the second oil filter 33. With such a setting, the oil passage where the second control valve is located is a return oil passage, which can make the oil in the second oil passage 3 directly return to the second oil pan 32 through the second control valve.

[0058] The vehicle according to the embodiment of the second aspect of the present invention includes an oil passage control system.

[0059] Therefore, by selectively connecting the first oil passage 2 and the second oil passage 3, when the clutch actuating pump 23 in the first oil passage 2 fails, the oil in the second oil passage 3 can be diverted to the first oil passage 2, ensuring the normal operation of the clutch 21, solving the problem that the clutch 21 cannot be engaged after the clutch actuating pump 23 and its related components fail, achieving the maximum availability of the vehicle power, and enhancing the robustness of the product design function implementation.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An oil circuit control system, characterized in that: include: Oil supply system; a first oil circuit, wherein a clutch is disposed on the first oil circuit, and a first oil inlet of the first oil circuit is connected to the oil supply system; a second oil circuit, wherein a second oil inlet of the second oil circuit is connected to the oil supply system, and the second oil circuit is selectively connected to the first oil circuit; a first control valve connected between the first oil circuit and the second oil circuit; The second oil circuit is any one of a shift oil circuit and a brake oil circuit.

2. The oil circuit control system according to claim 1, characterized in that: There are a plurality of the first oil circuits, and each of the first oil circuits is connected to the second oil circuit through the first control valve.

3. The oil circuit control system according to claim 1, characterized in that: The oil supply system comprises: The first hydraulic pump; Third oil pan; A first suction filter, one end of the first hydraulic pump is connected to one end of the first suction filter, the other end of the first hydraulic pump is connected to the third oil pan, and the other end of the first suction filter is connected to the first oil pan.

4. The oil circuit control system according to claim 3, characterized in that: The second oil circuit includes: a second oil pan, and the third oil pan is configured to overflow to the second oil pan when the oil inside the third oil pan reaches a predetermined height.

5. The oil circuit control system according to claim 4, characterized in that: The first oil pan is a clutch oil pan; and / or the second oil pan is a transmission oil pan.

6. The oil circuit control system according to claim 3, characterized in that: A clutch actuator pump is provided in the first oil circuit, and the clutch actuator pump is connected between the first oil inlet and the clutch. The clutch actuator pump is configured to discharge the oil in the clutch into the first oil pan through a throttle hole of the clutch.

7. The oil circuit control system according to claim 1, characterized in that: The second oil circuit is provided with a second suction filter and a second hydraulic pump, one end of the second suction filter is connected to the second oil inlet, the other end of the second suction filter is connected to one end of the second hydraulic pump, and the oil circuit portion at the other end of the second hydraulic pump is selectively connected to the first oil circuit.

8. A vehicle, characterized in that: It comprises the oil circuit control system as described in any one of claims 1 to 7.

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