IP Library › Granted Patent US 10,503,866
Granted Patent B2
US 10,503,866 · App. 15/601,399 · Granted Dec 10, 2019

Time-discrete modeling method for a motor vehicle

Inventors: Jonas Mueller (Munich, DE); Felix Lins (Munich, DE)
Assignee: Bayerische Motoren Werke Aktiengesellschaft
G06F17/5095G06F17/5009B60W50/0097B60W2050/0018B60W2050/0031
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Quick Facts
Patent No.
US 10,503,866
App. No.
15/601,399
Granted
Dec 10, 2019
Kind
B2
Abstract

A universal modeling method is provided for a motor vehicle, the universal modeling method including: providing an input signal set, the input signal set comprising those signals of respective sensors of the motor vehicle which can be relevant for the control of devices of the motor vehicle; selecting a set of modeling signals from the input signal set as a function of a system architecture of the motor vehicle; and determining an output signal set by way of a time-discrete selective state space model modeling function taking into account the set of modeling signals. In this case, the output signal set functions as a signal set for controlling corresponding actuators of the devices of the motor vehicle.

Claims (38)

1. A universal modeling method for a motor vehicle, the universal modeling method comprising the acts of:

providing an input signal set, the input signal set having those signals of applicable sensors of the motor vehicle that may be relevant for controlling apparatuses of the motor vehicle;

selecting a modeling signal set from the input signal set, on the basis of a system architecture of the motor vehicle; and

determining an output signal set by way of a time-discrete selective state space model modeling function taking into consideration the modeling signal set, wherein the output signal set acts as an electrical signal configured to actuate applicable actuators of the apparatuses of the motor vehicle wherein the input signal set has a zero signal; and wherein the selection of the modeling signal set from the input signal set comprises: zeroing of those signals from the input signal set that are not needed for the modeling signal set, wherein the zeroing is effected by way of the zero signal such that the signals from the input signal set that are not needed for the modeling signal set correspond to the value of the zero signal.

2. The universal modeling method as claimed in claim 1 , wherein

the state space model modeling function has a motor vehicle mode function, and wherein the universal modeling method further comprising the acts of:

determining a motor vehicle mode of the motor vehicle for the motor vehicle mode function, wherein

the determining of the output signal set is effected taking into consideration a result of application of the modeling signal set to the motor vehicle mode function.

3. The universal modeling method as claimed in claim 2 , wherein

the state space model modeling function further has a reference system function that corresponds to a motor-vehicle-specific reference system of the motor vehicle, and

the determining of the output signal set is effected taking into consideration a result of application of the modeling signal set to the reference system function.

4. The universal modeling method as claimed in claim 3 , wherein

the state space model modeling function further has an observer system that has an estimated system response of the motor vehicle, and

the determining of the output signal set is effected taking into consideration a result of application of the modeling signal set to the observer system.

5. The universal modeling method as claimed in claim 4 , wherein

the determining of the output signal set involves application of:

(i) a result of the application of the modeling signal set to the motor vehicle mode function,

(ii) a result of the application of the modeling signal set to the reference system function, and

(iii) a result of the application of the modeling signal set to the observer system,

to a control function, and wherein the control function acts as part of the discrete-time selective state space model modeling function.

6. The universal modeling method as claimed in claim 5 , wherein

the modeling signal set for the determining of the result of the application of the modeling signal set to the motor vehicle mode function has a difference from the modeling signal set for the determining of the result of the application of the modeling signal set to the time-discrete selective state space model modeling function, by way of a different selection of the signals from the input signal set for the respective modeling signal set.

7. The universal modeling method as claimed in claim 2 , wherein

the determining of the motor vehicle mode is effected by way of an association table of the system architecture of the motor vehicle.

8. The universal modeling method as claimed in claim 1 , wherein

the state space model modeling function further has a reference system function that corresponds to a motor-vehicle-specific reference system of the motor vehicle, and

the determining of the output signal set is effected taking into consideration a result of application of the modeling signal set to the reference system function.

9. The universal modeling method as claimed in claim 1 , wherein

the state space model modeling function further has an observer system that has an estimated system response of the motor vehicle, and

the determining of the output signal set is effected taking into consideration a result of application of the modeling signal set to the observer system.

10. The universal modeling method as claimed in claim 9 , wherein

the observer system has a physical system description of the motor vehicle.

11. A universal modeling method for a motor vehicle, the universal modeling method comprising the acts of:

providing an input signal set, the input signal set having a zero signal and those signals of applicable sensors of the motor vehicle that may be relevant for controlling apparatuses of the motor vehicle;

selecting a modeling signal set from the input signal set, on the basis of a system architecture of the motor vehicle; and

determining an output signal set by way of a time-discrete selective state space model modeling function taking into consideration the modeling signal set, wherein the output signal set acts as a signal configured to actuate applicable actuators of the apparatuses of the motor vehicle,

wherein selecting the modeling signal set from the input signal set comprises zeroing of those signals from the input signal set that are not needed for the modeling signal set,

wherein the zeroing is effected by way of the zero signal such that the signals from the input signal set that are not needed for the modeling signal set correspond to the value of the zero signal.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2017
From: MUELLER, JONAS; LINS, FELIX
To: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Reel/Frame 042459/0352 →
Priority Claims (1)
DE 10 2014 225 123 · Dec 8, 2014 · national
Continuity (2)
Continuation PCTEP2015076558 · Nov 13, 2015
Related Publication 20170262575A1 · Sep 14, 2017