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📄 sldemo_absbrake_digest0.mdl

📁 如何利用SIMULINK进行精确的建模
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	      Points		      [15, 0]
	      Branch {
		Labels			[-1, 1]
		Points			[0, -10]
		DstBlock		"Switch"
		DstPort			1
	      }
	      Branch {
		DstBlock		"MinMax"
		DstPort			1
	      }
	    }
	    Line {
	      SrcBlock		      "Brake\npressure"
	      SrcPort		      1
	      Points		      [0, 0]
	      DstBlock		      "Force &\ntorque"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Bang-bang\ncontroller"
	      SrcPort		      1
	      DstBlock		      "1/I1"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Hydraulic Lag "
	      SrcPort		      1
	      DstBlock		      "Brake\npressure"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "BrakeSignal"
	      SrcPort		      1
	      DstBlock		      "Bang-bang\ncontroller"
	      DstPort		      1
	    }
	    Line {
	      Name		      "Ww"
	      Labels		      [0, 0]
	      SrcBlock		      "Wheel\nSpeed"
	      SrcPort		      1
	      Points		      [45, 0]
	      Branch {
		DstBlock		"WheelSpeed"
		DstPort			1
	      }
	      Branch {
		Points			[5, 0; 0, 165]
		DstBlock		"Relay"
		DstPort			1
	      }
	    }
	    Line {
	      Labels		      [0, 0]
	      SrcBlock		      "Tire Torque"
	      SrcPort		      1
	      Points		      [0, 0]
	      Branch {
		Points			[125, 0]
		DstBlock		"Sum"
		DstPort			2
	      }
	      Branch {
		DstBlock		"MinMax"
		DstPort			2
	      }
	    }
	    Line {
	      SrcBlock		      "Switch"
	      SrcPort		      1
	      DstBlock		      "Sum"
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "MinMax"
	      SrcPort		      1
	      Points		      [0, -65]
	      DstBlock		      "Switch"
	      DstPort		      3
	    }
	    Line {
	      SrcBlock		      "1/I1"
	      SrcPort		      1
	      DstBlock		      "Hydraulic Lag "
	      DstPort		      1
	    }
	    Line {
	      SrcBlock		      "Relay"
	      SrcPort		      1
	      Points		      [-175, 0; 0, -115; 85, 0; 0, -50]
	      DstBlock		      "Switch"
	      DstPort		      2
	    }
	    Annotation {
	      Name		      "If wheel speed is zero, break torque is"
" equal in magnitude but opposite tire torque"
	      Position		      [494, 10]
	      UseDisplayTextAsClickCallback off
	    }
	  }
	}
	Block {
	  BlockType		  Constant
	  Name			  "Desired\nrelative\nslip"
	  Position		  [25, 27, 55, 53]
	  Value			  "0.2"
	  VectorParams1D	  on
	  SamplingMode		  "Sample based"
	  OutDataTypeMode	  "Inherit from 'Constant value'"
	  OutDataType		  "sfix(16)"
	  ConRadixGroup		  "Use specified scaling"
	  OutScaling		  "2^0"
	  SampleTime		  "inf"
	  FramePeriod		  "inf"
	}
	Block {
	  BlockType		  Gain
	  Name			  "Gain"
	  Position		  [305, 170, 335, 200]
	  ShowName		  off
	  Gain			  "-1"
	  ParameterDataTypeMode	  "Inherit via internal rule"
	  OutDataTypeMode	  "Inherit via internal rule"
	  SaturateOnIntegerOverflow off
	}
	Block {
	  BlockType		  Mux
	  Name			  "Mux"
	  Ports			  [3, 1]
	  Position		  [635, 30, 640, 260]
	  BackgroundColor	  "black"
	  ShowName		  off
	  Inputs		  "3"
	  Port {
	    PortNumber		    1
	    Name		    "yout"
	    PropagatedSignals	    "Ww, Vs, Sd"
	    TestPoint		    on
	    RTWStorageClass	    "Auto"
	    DataLogging		    on
	    DataLoggingNameMode	    "SignalName"
	    DataLoggingName	    "yout"
	  }
	}
	Block {
	  BlockType		  Constant
	  Name			  "No Brake"
	  Position		  [180, 82, 210, 108]
	  Value			  "-1"
	  VectorParams1D	  on
	  SamplingMode		  "Sample based"
	  OutDataTypeMode	  "Inherit from 'Constant value'"
	  OutDataType		  "sfix(16)"
	  ConRadixGroup		  "Use specified scaling"
	  OutScaling		  "2^0"
	  SampleTime		  "inf"
	  FramePeriod		  "inf"
	}
	Block {
	  BlockType		  Product
	  Name			  "Product"
	  Ports			  [2, 1]
	  Position		  [365, 144, 390, 166]
	  ShowName		  off
	  InputSameDT		  off
	  OutDataTypeMode	  "Inherit via internal rule"
	  SaturateOnIntegerOverflow off
	}
	Block {
	  BlockType		  Fcn
	  Name			  "Relative Slip"
	  Position		  [270, 272, 435, 298]
	  Orientation		  "left"
	  Expr			  "1.0 - u(1)/(u(2) + (u(2)==0)*eps)"
	  Port {
	    PortNumber		    1
	    Name		    "slp"
	    TestPoint		    on
	    RTWStorageClass	    "Auto"
	    DataLogging		    on
	    DataLoggingNameMode	    "SignalName"
	  }
	}
	Block {
	  BlockType		  Relay
	  Name			  "Relay"
	  Position		  [260, 170, 285, 200]
	  OffSwitchValue	  "-eps"
	}
	Block {
	  BlockType		  Gain
	  Name			  "Rr"
	  Position		  [325, 67, 365, 103]
	  ShowName		  off
	  Gain			  "-Rr"
	  Port {
	    PortNumber		    1
	    Name		    "tire torque"
	    RTWStorageClass	    "Auto"
	    DataLoggingNameMode	    "SignalName"
	    DataLoggingName	    "%<SignalLabel>"
	  }
	}
	Block {
	  BlockType		  Integrator
	  Name			  "Stopping distance"
	  Ports			  [1, 1]
	  Position		  [560, 201, 590, 239]
	  UpperSaturationLimit	  "1000"
	  LowerSaturationLimit	  "0"
	  IgnoreLimit		  off
	  Port {
	    PortNumber		    1
	    Name		    "Sd"
	    RTWStorageClass	    "Auto"
	    DataLoggingNameMode	    "SignalName"
	  }
	}
	Block {
	  BlockType		  Sum
	  Name			  "Sum1"
	  Ports			  [2, 1]
	  Position		  [90, 30, 110, 50]
	  ShowName		  off
	  IconShape		  "round"
	  Inputs		  "|+-"
	}
	Block {
	  BlockType		  Switch
	  Name			  "Switch"
	  Position		  [245, 35, 275, 65]
	  Threshold		  ".5"
	  InputSameDT		  off
	  SaturateOnIntegerOverflow off
	  Port {
	    PortNumber		    1
	    Name		    "BrakeSignal"
	    RTWStorageClass	    "Auto"
	    DataLoggingNameMode	    "SignalName"
	  }
	}
	Block {
	  BlockType		  Gain
	  Name			  "Vehicle speed\n(angular)"
	  Position		  [555, 127, 595, 163]
	  Gain			  "1/Rr"
	  Port {
	    PortNumber		    1
	    Name		    "Vs"
	    RTWStorageClass	    "Auto"
	    DataLoggingNameMode	    "SignalName"
	  }
	}
	Block {
	  BlockType		  Gain
	  Name			  "Weight"
	  Position		  [200, 133, 245, 167]
	  Gain			  "m*g/4"
	  Port {
	    PortNumber		    1
	    Name		    "Ff"
	    RTWStorageClass	    "Auto"
	    DataLoggingNameMode	    "SignalName"
	    DataLoggingName	    "%<SignalLabel>"
	  }
	}
	Block {
	  BlockType		  Lookup
	  Name			  "mu-slip\nfriction curve"
	  Position		  [140, 135, 175, 165]
	  InputValues		  "slip"
	  OutputValues		  "mu"
	}
	Block {
	  BlockType		  Outport
	  Name			  "BrakingForce"
	  Position		  [455, 148, 485, 162]
	  IconDisplay		  "Port number"
	  BusOutputAsStruct	  off
	}
	Line {
	  Name			  "yout"
	  Labels		  [1, 0]
	  SrcBlock		  "Mux"
	  SrcPort		  1
	  Points		  [50, 0; 0, 140]
	  DstBlock		  "Relative Slip"
	  DstPort		  1
	}
	Line {
	  Name			  "Vs"
	  Labels		  [0, 0]
	  SrcBlock		  "Vehicle speed\n(angular)"
	  SrcPort		  1
	  DstBlock		  "Mux"
	  DstPort		  2
	}
	Line {
	  Name			  "slp"
	  Labels		  [0, 1]
	  SrcBlock		  "Relative Slip"
	  SrcPort		  1
	  Points		  [-165, 0; 0, -135]
	  Branch {
	    DstBlock		    "mu-slip\nfriction curve"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, -85]
	    DstBlock		    "Sum1"
	    DstPort		    2
	  }
	}
	Line {
	  Name			  "Sd"
	  Labels		  [0, 0]
	  SrcBlock		  "Stopping distance"
	  SrcPort		  1
	  DstBlock		  "Mux"
	  DstPort		  3
	}
	Line {
	  SrcBlock		  "VehicleSpeed"
	  SrcPort		  1
	  Points		  [0, 0; 15, 0]
	  Branch {
	    Points		    [325, 0]
	    Branch {
	      Points		      [0, -75]
	      DstBlock		      "Vehicle speed\n(angular)"
	      DstPort		      1
	    }
	    Branch {
	      DstBlock		      "Stopping distance"
	      DstPort		      1
	    }
	  }
	  Branch {
	    Points		    [0, -35]
	    DstBlock		    "Relay"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "mu-slip\nfriction curve"
	  SrcPort		  1
	  DstBlock		  "Weight"
	  DstPort		  1
	}
	Line {
	  Name			  "Ff"
	  Labels		  [1, 1]
	  SrcBlock		  "Weight"
	  SrcPort		  1
	  DstBlock		  "Product"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Desired\nrelative\nslip"
	  SrcPort		  1
	  DstBlock		  "Sum1"
	  DstPort		  1
	}
	Line {
	  Name			  "tire torque"
	  Labels		  [0, 0]
	  SrcBlock		  "Rr"
	  SrcPort		  1
	  DstBlock		  "Brakes"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Sum1"
	  SrcPort		  1
	  Points		  [0, 0]
	  DstBlock		  "Switch"
	  DstPort		  1
	}
	Line {
	  Name			  "BrakeSignal"
	  Labels		  [0, 0]
	  SrcBlock		  "Switch"
	  SrcPort		  1
	  Points		  [130, 0]
	  DstBlock		  "Brakes"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "No Brake"
	  SrcPort		  1
	  Points		  [5, 0; 0, -35]
	  DstBlock		  "Switch"
	  DstPort		  3
	}
	Line {
	  SrcBlock		  "BrakeSignal"
	  SrcPort		  1
	  Points		  [0, 0]
	  DstBlock		  "Switch"
	  DstPort		  2
	}
	Line {
	  Name			  "Ww"
	  Labels		  [0, 0]
	  SrcBlock		  "Brakes"
	  SrcPort		  1
	  DstBlock		  "Mux"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Relay"
	  SrcPort		  1
	  DstBlock		  "Gain"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Product"
	  SrcPort		  1
	  Points		  [20, 0]
	  Branch {
	    DstBlock		    "BrakingForce"
	    DstPort		    1
	  }
	  Branch {

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