# US 2014/0190448 A1 · Intake runner temperature determination systems and methods

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- Number: US 2014/0190448 A1
- Document ID: US20140190448A1
- Status: Published application
- Kind: A1
- Application number: 13/798,624
- Filed: 2013-03-13
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Assignees: GM Global Technology Operations LLC
- Applicants: GM Global Technology Operations LLC
- Inventors: Daniel G. Brennan; Gregory P. Matthews; Layne K. Wiggins
- Web page: https://patentgrep.com/patent/US20140190448A1

## CPC

- F02D 41/0087: {Selective cylinder activation, i.e. partial cylinder operation (deceleration cut-off F02D41/123)}
- F02D 41/0062: {Estimating, calculating or determining the internal EGR rate, amount or flow}
- F02D 41/0072: {Estimating, calculating or determining the EGR rate, amount or flow (sensors in EGR systems F02M26/45)}
- F02D 2041/1432: {the system including a filter, e.g. a low pass or high pass filter}
- F02D 2200/0408: Estimation of intake manifold pressure
- F02D 2200/0414: Air temperature
- F02D 2200/0416: Estimation of air temperature
- F02P 5/1502: {using one central computing unit}
- Y02T 10/40: Engine management systems
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)
- F02P: IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES ({anti-pollution means for internal-combustion engines F02B17/00}; specially adapted for rotary-piston or oscillating-piston engines F02B53/12; {ignition of gas turbine plants F02C7/26; ignition of jet propulsion plants F02K9/95; starting of combustion engines F02N9/00}; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H; {ignition coils H01F38/12}; sparking plugs H01T13/00)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An engine control system of a vehicle includes a manifold temperature module, a runner temperature module. The manifold temperature module determines a first temperature of gas in an intake manifold of an engine. The runner temperature module determines a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold. The engine control system further includes at least one of: a fuel control module that controls fueling of the cylinder based on the second temperature of the gas in the intake runner; and a spark control module that controls spark of the cylinder based on the second temperature of the gas in the intake runner.

## Claims

### Claim 1

An engine control system of a vehicle, comprising:
a manifold temperature module that determines a first temperature of gas in an intake manifold of an engine;
a runner temperature module that determines a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold; and
at least one of:
a fuel control module that controls fueling of the cylinder based on the second temperature of the gas in the intake runner; and
a spark control module that controls spark of the cylinder based on the second temperature of the gas in the intake runner.

### Claim 2 (depends on 1)

The engine control system of claim 1 wherein the runner temperature module determines the second temperature of the gas in the intake runner further based on whether the cylinder is activated or deactivated.

### Claim 3 (depends on 1)

The engine control system of claim 1 wherein the runner temperature module determines the second temperature of the gas in the intake runner further based an exhaust temperature and an amount of exhaust expelled from the cylinder into the intake runner.

### Claim 4 (depends on 3)

The engine control system of claim 3 further comprising an exhaust residual module that determines the amount of exhaust based on whether the cylinder is activated or deactivated.

### Claim 5 (depends on 4)

The engine control system of claim 4 wherein the exhaust residual module determines the amount of exhaust further based on a period when intake and exhaust valves of the cylinder are both open and an intake valve closing timing of the cylinder.

### Claim 6 (depends on 5)

The engine control system of claim 5 wherein the exhaust residual module determines the amount of exhaust further based on a pressure within the intake manifold.

### Claim 7 (depends on 1)

The engine control system of claim 1 further comprising a second runner temperature module that determines a third temperature of the gas in the intake runner associated with the cylinder based on the second temperature of the gas in the intake runner and whether the cylinder is activated or deactivated.

### Claim 8 (depends on 7)

The engine control system of claim 7 wherein the second runner temperature module determines the third temperature further based on a previous value of the third temperature.

### Claim 9 (depends on 8)

The engine control system of claim 8 wherein the second runner temperature module determines the third temperature further based on at least one of an engine speed and a mass flowrate of gas into the intake runner.

### Claim 10 (depends on 9)

The engine control system of claim 9 wherein the second runner temperature module determines the third temperature based on the engine speed when the cylinder is deactivated and determines the third temperature based on the mass flowrate of gas into the intake runner when the cylinder is activated.

### Claim 11

An engine control method for a vehicle, comprising:
determining a first temperature of gas in an intake manifold of an engine;
determining a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold; and
at least one of:
controlling fueling of the cylinder based on the second temperature of the gas in the intake runner; and
controlling spark of the cylinder based on the second temperature of the gas in the intake runner.

### Claim 12 (depends on 11)

The engine control method of claim 11 further comprising determining the second temperature of the gas in the intake runner further based on whether the cylinder is activated or deactivated.

### Claim 13 (depends on 11)

The engine control method of claim 11 further comprising determining the second temperature of the gas in the intake runner further based an exhaust temperature and an amount of exhaust expelled from the cylinder into the intake runner.

### Claim 14 (depends on 13)

The engine control method of claim 13 further comprising determining the amount of exhaust based on whether the cylinder is activated or deactivated.

### Claim 15 (depends on 14)

The engine control method of claim 14 further comprising determining the amount of exhaust further based on a period when intake and exhaust valves of the cylinder are both open and an intake valve closing timing of the cylinder.

### Claim 16 (depends on 15)

The engine control method of claim 15 further comprising determining the amount of exhaust further based on a pressure within the intake manifold.

### Claim 17 (depends on 11)

The engine control method of claim 11 further comprising determining a third temperature of the gas in the intake runner associated with the cylinder based on the second temperature of the gas in the intake runner and whether the cylinder is activated or deactivated.

### Claim 18 (depends on 17)

The engine control method of claim 17 further comprising determining the third temperature further based on a previous value of the third temperature.

### Claim 19 (depends on 18)

The engine control method of claim 18 further comprising determining the third temperature further based on at least one of an engine speed and a mass flowrate of gas into the intake runner.

### Claim 20 (depends on 19)

The engine control method of claim 19 further comprising:
determining the third temperature based on the engine speed when the cylinder is deactivated; and
determining the third temperature based on the mass flowrate of gas into the intake runner when the cylinder is activated.
