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Voice warning system for an automotive vehicle

  • US 4,401,848 A
  • Filed: 10/03/1980
  • Issued: 08/30/1983
  • Est. Priority Date: 10/04/1979
  • Status: Expired due to Term
First Claim
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1. A voice warning system for informing a driver of an automotive vehicle, provided with a radiator filled with coolant and with a fan belt for driving a fan, of an overheat condition and of corrective actions to be taken, which comprises:

  • (a) a coolant temperature sensing means for outputting a coolant temperature signal St only when coolant temperature exceeds a predetermined temperature;

    (b) a fan-belt slippage sensing means for outputting a fan-belt slippage signal Sf only when the fan belt is slipping;

    (c) a radiator coolant level sensing means for outputting a radiator level signal Sr only when coolant level in the radiator is below a predetermined level;

    (d) a microcomputer means connected to said coolant temperature sensing means, to said fan-belt slippage sensing means, and to said radiator coolant level sensing means, said microcomputer means operatively connected to said sensing means for periodically checking for the presence of the coolant temperature signal St and, in response to the presence of the coolant temperature signal St, for sequentially checking for the presence of the fan-belt slippage signal Sf and the radiator coolant level signal Sr, said microcomputer meansdetermining appropriate voice output messages in response to the presence or absence of the coolant temperature signal St, the fan-belt slippage signal Sf and the radiator coolant level signal Sr, and outputting voice output message signals corresponding to the detected signals;

    (e) a voice synthesizer means connected to said microcomputer means for indicating the occurrence and causes of an overheat condition by synthesizing voice output messages in response to the voice output message signals output from said microcomputer, and(f) a loudspeaker connected to said voice synthesizer means for outputting voice output messages synthesized by said synthesizer means for indicating to the vehicle driver of both the overheat condition and the corrective actions to be taken for correcting the overheat condition.

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