Control device for hybrid vehicle
US-2021229654-A1 · Jul 29, 2021 · US
Electric vehicle
US2022032897A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022032897-A1 |
| Application number | US-202117379301-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 19, 2021 |
| Priority date | Jul 30, 2020 |
| Publication date | Feb 3, 2022 |
| Grant date | — |
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- Title
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Abstract
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An electric vehicle includes a vehicle controller. The vehicle controller is capable of switching a traveling mode of the electric vehicle between a first traveling mode and a second traveling mode that applies driving-force maps for enhancing a rough-road capability from a rough-road capability in the first traveling mode. The vehicle controller is capable of switching the traveling mode to the second traveling mode in forward traveling and in backward traveling and is configured to apply, to the backward traveling in the second traveling mode, a first driving-force map of the driving-force maps, the first driving-force map having gentler characteristics than a second driving-force map of the driving-force map applied to the forward traveling in the second traveling mode.
First claim
Opening claim text (preview).
1 . An electric vehicle comprising: a vehicle controller capable of switching a traveling mode of the electric vehicle between a first traveling mode and a second traveling mode that applies driving-force maps for enhancing a rough-road capability from a rough-road capability in the first traveling mode, wherein the vehicle controller is capable of switching the traveling mode to the second traveling mode in forward traveling and in backward traveling and is configured to apply, to the backward traveling in the second traveling mode, a first driving-force map of the driving-force maps, the first driving-force map having gentler characteristics than a second driving-force map of the driving-force maps, the second driving-force map being applied to the forward traveling in the second traveling mode. 2 . The electric vehicle according to claim 1 , further comprising: an engine configured to drive a driving wheel; a drive motor configured to drive the driving wheel; and a continuously variable transmission configured to transfer power generated by the drive motor to the driving wheel, wherein the second traveling mode allows outputting of power generated by the engine alone to the drive wheel or both the outputting of the power generated by the engine and outputting of the power generated by the drive motor to the drive wheel, and wherein the vehicle controller is configured to apply a delay to the outputting of the power generated by the drive motor in response to switching between the forward traveling and the backward traveling in the second traveling mode. 3 . The electric vehicle according to claim 2 , wherein the delay applied in response to switching of forward traveling to backward traveling in the second traveling mode is shorter than the delay applied in response to switching of backward traveling to forward traveling in the second traveling mode. 4 . The electric vehicle according to claim 2 , wherein in response to co-occurrence of starting of the engine and switching between forward traveling and backward traveling in the second traveling mode, the vehicle controller increases the delay. 5 . The electric vehicle according to claim 3 , wherein in response to co-occurrence of starting of the engine and switching between forward traveling and backward traveling in the second traveling mode, the vehicle controller increases the delay. 6 . The electric vehicle according to claim 1 , wherein the second traveling mode includes a sub-mode A in which wheelspin of the driving wheel is permitted, and a sub-mode B in which wheelspin of the driving wheel is suppressed, and wherein the vehicle controller is configured to reduce a power change that occurs in response to switching between the sub-mode A and the sub-mode B more gradually in the backward traveling than in the forward traveling. 7 . The electric vehicle according to claim 2 , wherein the second traveling mode includes a sub-mode A in which wheelspin of the driving wheel is permitted, and a sub-mode B in which wheelspin of the driving wheel is suppressed, and wherein the vehicle controller is configured to reduce a power change that occurs in response to switching between the sub-mode A and the sub-mode B more gradually in the backward traveling than in the forward traveling. 8 . The electric vehicle according to claim 3 , wherein the second traveling mode includes a sub-mode A in which wheelspin of the driving wheel is permitted, and a sub-mode B in which wheelspin of the driving wheel is suppressed, and wherein the vehicle controller is configured to reduce a power change that occurs in response to switching between the sub-mode A and the sub-mode B more gradually in the backward traveling than in the forward traveling. 9 . The electric vehicle according to claim 4 , wherein the second traveling mode includes a sub-mode A in which wheelspin of the driving wheel is permitted, and a sub-mode B in which wheelspin of the driving wheel is suppressed, and wherein the vehicle controller is configured to reduce a power change that occurs in response to switching between the sub-mode A and the sub-mode B more gradually in the backward traveling than in the forward traveling. 10 . The electric vehicle according to claim 5 , wherein the second traveling mode includes a sub-mode A in which wheelspin of the driving wheel is permitted, and a sub-mode B in which wheelspin of the driving wheel is suppressed, and wherein the vehicle controller is configured to reduce a power change that occurs in response to switching between the sub-mode A and the sub-mode B more gradually in the backward traveling than in the forward traveling. 11 . An electric vehicle comprising: circuitry capable of switching a traveling mode of the electric vehicle between a first traveling mode and a second traveling mode that applies driving-force maps for enhancing a rough-road capability from a rough-road capability in the first traveling mode is applied, wherein the circuitry is capable of switching the traveling mode to the second traveling mode in forward traveling and in backward traveling and is configured to apply, to the backward traveling in the second traveling mode, a first driving-force map of the driving-force maps, the first driving-force map having gentler characteristics than a second driving-force map of the driving-force maps, the second driving-force map being applied to the forward traveling in the second traveling mode.
Assignees
Inventors
Classifications
Electric energy management in electromobility · CPC title
Hybrid vehicles · CPC title
Torque change rate · CPC title
Ratio selector position · CPC title
Transfer function lag; delays · CPC title
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Frequently asked questions
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- What does patent US2022032897A1 cover?
- An electric vehicle includes a vehicle controller. The vehicle controller is capable of switching a traveling mode of the electric vehicle between a first traveling mode and a second traveling mode that applies driving-force maps for enhancing a rough-road capability from a rough-road capability in the first traveling mode. The vehicle controller is capable of switching the traveling mode to th…
- Who is the assignee on this patent?
- Subaru Corp
- What technology area does this patent fall under?
- Primary CPC classification B60W20/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Feb 03 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).