Vehicle control device and vehicle drive system for implementing a one-way transmission speed or engaging a first engaging element in an idle stop state
First Claim
1. A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, an electric pump that is driven by electric power and discharges working fluid, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds, whereinthe transmission apparatus is provided with, as one of the plurality of the shift speeds, a one-way transmission speed at which the rotational driving force is transmitted from the input member to the output member and the rotational driving force is not transmitted from the output member to the input member;
- the vehicle control device is provided with a control unit that controls the transmission apparatus to implement the one-way transmission speed in an idle stop state in which the vehicle is in a moving state and the engine is stopped;
in a case where a travel speed of the vehicle is not greater than a predetermined release threshold value, the one-way transmission speed is implemented by a hydraulic pressure from the electric pump; and
in a case where the travel speed of the vehicle is greater than the predetermined release threshold value, all of the engaging elements are released.
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Accused Products
Abstract
A vehicle control device where, the transmission apparatus is provided with a state in which the rotational driving force is not transmitted from the output member to the input member when a first engaging element is engaged; the vehicle control device is provided with a control unit that controls the transmission apparatus to engage the first engaging element by a hydraulic pressure from the electric pump for implementing the state in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a travel speed of the vehicle is not greater than a predetermined release threshold value, the first engaging element is engaged by the hydraulic pressure from the electric pump; and in a case where the travel speed of the vehicle is greater than the predetermined release threshold value, all of the engaging elements are released.
38 Citations
27 Claims
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1. A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, an electric pump that is driven by electric power and discharges working fluid, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds, wherein
the transmission apparatus is provided with, as one of the plurality of the shift speeds, a one-way transmission speed at which the rotational driving force is transmitted from the input member to the output member and the rotational driving force is not transmitted from the output member to the input member; -
the vehicle control device is provided with a control unit that controls the transmission apparatus to implement the one-way transmission speed in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a travel speed of the vehicle is not greater than a predetermined release threshold value, the one-way transmission speed is implemented by a hydraulic pressure from the electric pump; and in a case where the travel speed of the vehicle is greater than the predetermined release threshold value, all of the engaging elements are released. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, an electric pump that is driven by electric power and discharges working fluid, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds, wherein
the transmission apparatus is provided with, as one of the plurality of the shift speeds, a one-way transmission speed at which the rotational driving force is transmitted from the input member to the output member and the rotational driving force is not transmitted from the output member to the input member; -
the vehicle control device is provided with a control unit that controls the transmission apparatus to implement the one-way transmission speed in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a shift speed is a predetermined shift speed, the one-way transmission speed is implemented by a hydraulic pressure from the electric pump; and in a case where the shift speed is not the predetermined shift speed, all of the engaging elements are released. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, an electric pump that is driven by electric power and discharges working fluid, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds, wherein
the transmission apparatus is provided with a state in which the rotational driving force is not transmitted from the output member to the input member when a first engaging element is engaged; -
the vehicle control device is provided with a control unit that controls the transmission apparatus to engage the first engaging element by a hydraulic pressure from the electric pump for implementing the state in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a travel speed of the vehicle is not greater than a predetermined release threshold value, the first engaging element is engaged by the hydraulic pressure from the electric pump; and in a case where the travel speed of the vehicle is greater than the predetermined release threshold value, all of the engaging elements are released. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, an electric pump that is driven by electric power and discharges working fluid, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds, wherein
the transmission apparatus is provided with a state in which the rotational driving force is not transmitted from the output member to the input member when a first engaging element is engaged; -
the vehicle control device is provided with a control unit that controls the transmission apparatus to engage the first engaging element by a hydraulic pressure from the electric pump for implementing the state in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a shift speed is a predetermined shift speed, the first engaging element is engaged by the hydraulic pressure from the electric pump; and in a case where the shift speed is not the predetermined shift speed, all of the engaging elements are released. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification