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US 5,485,892 AGranted
Drive control system for automobile
AssigneeMazda Motor Corporation
InventorKenji Fujita
Life of this patent
Estimating the term…
Abstract
A plurality of drive control programs are selectively used to automatically control a car according to a driving situation recognized based on circumstances of a path ahead in which the car is traveling.
Claims18
An automatic drive control system for a car comprising:
- recognizing means for recognizing external circumstances in a path ahead of the car;
- drive situation determining means for determining a drive situation of the car on the basis of circumstances recognized by said recognizing means;
- program storage means for storing control programs prepared for a plurality of different drive control modes according to previously specified drive situations;
- control scheduling means for selecting at least one of said control programs according to a drive situation determined by said drive situation determining means;
- control means for providing control signals in accordance with said at least one of said control programs selected by said control scheduling means;
- and
- actuators for providing said car with speed and direction control in response to said control signals.
4 more elements
An automatic drive control system for a car comprising:
- recognizing means for recognizing external circumstances in a path ahead of the car;
- drive situation determining means for determining a drive situation of the car on the basis of circumstances recognized by said recognizing means;
- program storage means for storing a plurality of control programs prepared according to specified drive situations;
- control scheduling means for selecting at least one of said control programs according to a drive situation determined by said drive situation determining means;
- control means for providing control signals in accordance with said at least one of said control programs selected by said control scheduling means;
- and
- actuators for providing said car with speed and direction control in response to said control signals;
- wherein said control signals control said actuators in accordance with a control program which has a minimum control burden among control burdens for said at least one of said control programs.
5 more elements
An automatic drive control system for a car comprising:
- a recognizing device for recognizing external circumstances in a path ahead of the car;
- a drive situation determining device for determining a drive situation of the car based on circumstances recognized by said recognizing device;
- a program storage device for storing control programs including steering control programs and speed control programs prepared for a plurality of different drive control modes according to previously specified drive situations;
- a control scheduling device for selecting at least one of said control programs according to a drive situation determined by said drive situation determining device;
- a control device for providing control signals in accordance with said at least one of said control programs selected by said control scheduling device;
- and
- actuators for providing said car with speed and direction control in response to said control signals.
4 more elements
An automatic drive control system for a car comprising:
- a recognizing device for recognizing external circumstances in a path ahead of the car;
- a drive situation determining device for determining a drive situation of the car based on circumstances recognized by said recognizing device;
- a program storage device for storing a plurality of control programs including steering control programs and speed control programs prepared according to specified drive situations;
- a control scheduling device for selecting at least one of said control programs according to a drive situation determined by said drive situation determining device;
- a control device for providing control signals in accordance with said at least one of said control programs selected by said control scheduling device;
- and
- actuators for providing said car with speed and direction control in response to said control signals;
- wherein said control device controls an acceleration system and a braking system according to one of said control programs and said control scheduling device selects a control program which provides a lowest speed.
5 more elements
An automatic drive control system for a car comprising;
- a recognizing device for recognizing external circumstances in a path ahead of the car;
- a drive situation determining device for determining a drive situation of the car based on circumstances recognized by said recognizing device;
- a program storage device for storing a plurality of control programs including steering control programs and speed control programs prepared according to specified drive situations;
- a control scheduling device for selecting at least one of said control programs according to a drive situation determined by said drive situation determining device;
- a control device for providing control signals in accordance with said at least one of said control programs selected by said control scheduling device;
- and
- actuators for providing said car with speed and direction control in response to said control signals;
- wherein said control scheduling device selects one of said control programs which provides a minimum control burden.
5 more elements
Dependencies are inferred from the claim text.