Method and System for Determining a Pressure Deviation Between a Setpoint Tire Pressure and an Actual Tire Pressure for a Tire of a Vehicle as Well as for Determining a Wheel Load
US-2016200155-A1 · Jul 14, 2016 · US
Method and System for Ascertaining a Pressure Ratio Between a Setpoint Tire Pressure and an Actual Tire Pressure for a Tire of a Vehicle
US2016200154A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016200154-A1 |
| Application number | US-201414909332-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 18, 2014 |
| Priority date | Aug 1, 2013 |
| Publication date | Jul 14, 2016 |
| Grant date | — |
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Abstract
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A pressure ratio between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle is ascertained by the following steps: Ascertaining a wheel load which is acting on the tire. Ascertaining a dynamic tire radius of the tire. Ascertaining the pressure ratio as a function of the wheel load and the dynamic tire radius.
First claim
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1 - 9 . (canceled) 10 . A method for ascertaining a pressure ratio between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle, comprising: ascertaining a wheel load acting on the tire; ascertaining a dynamic tire radius of the tire; and ascertaining the pressure ratio as a function of the wheel load and the dynamic tire radius. 11 . The method according to claim 10 , wherein the pressure ratio is ascertained as a function of a constant of the tire, which indicates a setpoint ratio between the dynamic tire radius and an unloaded tire radius. 12 . The method according to claim 11 , wherein: the pressure ratio is calculated in accordance with the following equation: p Rel =(1−c Actual )/(1−c Ideal ), p Rel being the pressure ratio, c Actual being a ratio between the dynamic tire radius and the unloaded tire radius, and c Ideal being the constant of the tire. 13 . The method according to claim 10 , further comprising: ascertaining an actual tire pressure of the tire; and ascertaining a setpoint tire pressure of the tire, by multiplying the pressure ratio by the actual tire pressure. 14 . The method according to claim 10 , further comprising: ascertaining a tire rigidity; ascertaining a difference between an unloaded tire radius of the tire in an unloaded state and the dynamic tire radius as a function of the wheel load and the tire rigidity; and
Assignees
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Classifications
Load or weight · CPC title
- B60C23/0486Primary
comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors · CPC title
Speed · CPC title
- B60C23/061Primary
by monitoring wheel speed (measuring distance traversed on the ground by vehicles G01C22/00) · CPC title
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- What does patent US2016200154A1 cover?
- A pressure ratio between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle is ascertained by the following steps: Ascertaining a wheel load which is acting on the tire. Ascertaining a dynamic tire radius of the tire. Ascertaining the pressure ratio as a function of the wheel load and the dynamic tire radius.
- Who is the assignee on this patent?
- Volkswagen Ag
- What technology area does this patent fall under?
- Primary CPC classification B60C23/0486. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jul 14 2016 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).