Method for Controlling an Automatic Shut-Off Process and/or Start-Up Process of an Internal Combustion Engine in a Motor Vehicle
First Claim
1. A method for controlling at least one of an automatic shut-off and start-up process of an internal combustion engine in a motor vehicle having a start/stop device, the method comprising the acts of:
- automatically shutting-off the internal combustion engine after driving the motor vehicle upon stopping the motor vehicle when predetermined shut-off conditions are met by corresponding influencing variables;
automatically starting-up the internal combustion engine after being automatically shut-off when predetermined start-up conditions are satisfied by corresponding influencing variables; and
wherein at least one of the following influencing variables are evaluated to meet said at least one of the predetermined shut-off and start-up conditions;
a) a presence or absence of at least one of a driver identification transmitter and a vehicle key;
b) a current state of a tank ventilation system;
c) a current tank fill level of a fuel tank;
d) a current state of a diesel particulate filter present in the vehicle;
e) an activity state of at least one of a workshop mode, a works mode, a service mode, and a production mode;
f) a current ambient temperature outside the vehicle;
g) an evaluation of a device for detecting occupancy of the driver'"'"'s seat wherein the device for detecting occupancy of the seat is configured as at least one of a seat occupancy mat, a camera system, and a seat belt buckle evaluation system;
h) a detection of a cylinder synchronization process;
i) an activity state of a driving speed control system;
j) an activity state of an auto hold function in a motor vehicle having an automatic transmission;
k) an activity state of an electric parking brake; and
l) an activity state of a hill hold function.
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Accused Products
Abstract
A method controls an automatic shut-off process of an internal combustion engine having a start/stop device, when predetermined shut-off conditions are satisfied by corresponding influential variables, and controls a start-up process, when predetermined start-up conditions are satisfied by corresponding influential variables. Variables influencing the evaluation of the shut-off and/or start-up conditions include the presence of a vehicle key, the state of a tank ventilation system, the fuel tank fill level, the state of a diesel particulate filter, an activity state of a workshop mode, works mode, service mode and/or production mode, the current ambient temperature outside the vehicle, an evaluation of a device for detecting the occupancy, the detection of a cylinder synchronization process, an activity state of a driving speed control system, an auto hold function in vehicles with automatic transmissions, an electric parking brake, and/or a hill hold function.
55 Citations
20 Claims
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1. A method for controlling at least one of an automatic shut-off and start-up process of an internal combustion engine in a motor vehicle having a start/stop device, the method comprising the acts of:
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automatically shutting-off the internal combustion engine after driving the motor vehicle upon stopping the motor vehicle when predetermined shut-off conditions are met by corresponding influencing variables; automatically starting-up the internal combustion engine after being automatically shut-off when predetermined start-up conditions are satisfied by corresponding influencing variables; and wherein at least one of the following influencing variables are evaluated to meet said at least one of the predetermined shut-off and start-up conditions; a) a presence or absence of at least one of a driver identification transmitter and a vehicle key; b) a current state of a tank ventilation system; c) a current tank fill level of a fuel tank; d) a current state of a diesel particulate filter present in the vehicle; e) an activity state of at least one of a workshop mode, a works mode, a service mode, and a production mode; f) a current ambient temperature outside the vehicle; g) an evaluation of a device for detecting occupancy of the driver'"'"'s seat wherein the device for detecting occupancy of the seat is configured as at least one of a seat occupancy mat, a camera system, and a seat belt buckle evaluation system; h) a detection of a cylinder synchronization process; i) an activity state of a driving speed control system; j) an activity state of an auto hold function in a motor vehicle having an automatic transmission; k) an activity state of an electric parking brake; and l) an activity state of a hill hold function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification