Boat and control system for a boat

• US 7,840,318 B2
• Filed: 10/26/2006
• Issued: 11/23/2010
• Est. Priority Date: 04/26/2004
• Status: Active Grant

• Current Assignee: AB Volvo
• Original Assignee: AB Volvo
• Inventors: Bremsjo, Lars
• Primary Examiner(s): Black; Thomas G
• Assistant Examiner(s): Chen; Shelley
• Application Number:
  US11/553,371
• Publication Number:
  US 20070049136A1
• Time in Patent Office: 1,489 Days
• Field of Search: 701/21
• US Class Current: 701/21
• CPC Class Codes: B63H 2020/003 Arrangements of two, or more outboard propulsion units
• CPC Class Codes: B63H 21/22 the propulsion power units being controlled from exterior of engine room, e.g. from navigation bridge; Arrangements of order telegraphs
• CPC Class Codes: B63H 5/08 of more than one propeller
• CPC Class Codes: B63H 5/10 of coaxial type, e.g. of counter-rotative type
• CPC Class Codes: B63H 5/125 movably mounted with respect to hull, e.g. adjustable in direction , e.g. podded azimuthing thrustersoutboard units or Z-drives B63H20/00; movably mounted for steering purposes only, rudders carrying propellers B63H25/42

Abstract

A control system for a boat including a first hierarchical control module which receives command signals from sensors connected to a throttle control member to emit a command signal corresponding to the required acceleration and sensors connected to a steering control device to emit a command signal corresponding to the required direction of travel. A second hierarchical control module is arranged to execute operating routines for power units including at least a propulsion motor and a servo device for a direction of travel setting device, where the operating routines generate operating signals for the power units in response to input data in the form of externally received target value signals generated by a third hierarchical control module in response to operating conditions of the boat, and a boat having such a control system.

Claims

1. A boat, comprising:

A first and a second driveline, each of which comprises a propulsion unit and a servo device for a direction-of-travel-setting device;

a control system for the boat, wherein the control system comprises;

command-level components comprising at least one throttle-control member by means of which an operator of the boat controls the boat'"'"'s speed or acceleration;

a sensor or sensors associated with the throttle-control member so as to sense the operator-set configuration thereof and generate speed or acceleration command signals indicative of the commanded speed or acceleration of the boat;

a steering-control member by means of which the operator of the boat controls the boat'"'"'s direction of travel; and

a sensor or sensors associated with the steering-control member so as to sense the operator-set configuration thereof and generate steering command signals indicative of the commanded direction of travel of the boat;

a first hierarchical control module;

a second hierarchical control module associated with each of the drivelines;

a third hierarchical control module associated with each of the drivelines;

wherein the first hierarchical control module receives and processes the speed or acceleration command signals and the steering command signals and generates and outputs speed or acceleration control signals and steering control signals corresponding to the speed or acceleration command signals and the steering command signals, respectively;

wherein the second hierarchical control module associated with each driveline is configured to execute operating routines for the propulsion unit of the driveline, which operating routines generate operating signals for the propulsion unit of the driveline in response to target value signals generated externally to said second hierarchical control module associated with the driveline; and

wherein the third hierarchical control module associated with each driveline receives and processes the speed or acceleration control signals and the steering control signals output by the first hierarchical control module and, in response to conditions corresponding to driving characteristics of the boat, converts those speed or acceleration control signals and steering control signals into said target value signals for the driveline with which the third hierarchical control module is associated.

2. The boat as claimed in claim 1, wherein the third hierarchical control module associated with each of the drivelines is configured to generate the target value signals for the propulsion unit of the driveline with which it is associated on the basis of at least the speed or acceleration control signals and the steering control signals and in response to the status of the propulsion unit of the other driveline.

3. The boat as claimed in claim 2, wherein the third hierarchical control module associated with each of the drivelines is configured to generate the target value signals for the propulsion unit of the driveline with which it is associated in response to a status report emitted by the third hierarchical control module associated with the other driveline.

4. The boat as claimed in claim 2, wherein the third hierarchical control modules are arranged to generate the target value signals on the basis of driving characteristics of the boat as measured by one or more sensors.

5. The boat as claimed in claim 1, wherein the third hierarchical control module associated with each driveline has the same priority as the third hierarchical control module associated with the other driveline and independently controls the driveline with which it is associated while taking into account internal and external signals.

6. The boat as claimed in claim 1, wherein the control system is configured such that the status of the second driveline can affect control instructions that are generated by the third hierarchical control module associated with the first driveline, this effect taking place only through input data in control routines that are executed by the third hierarchical control module associated with the first driveline, and vice-versa.

7. The boat as claimed in claim 1, wherein said command-level components further comprise a gear selector and an associated sensor which is configured to sense the configuration of the gear selector and to emit a command signal corresponding to a commanded gear position;

wherein said first hierarchical control module receives and processes said gear command signal and outputs a gear control signal based thereon; and

wherein said third hierarchical control module or modules processes/process the gear control signal output by the first hierarchical control module and converts/convert it into a further target value signal, which is output to said second hierarchical control module or modules, in response to conditions corresponding to the current driving characteristics of the boat.