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Vehicle drive system controller and control method

  • US 6,009,365 A
  • Filed: 12/23/1998
  • Issued: 12/28/1999
  • Est. Priority Date: 12/25/1997
  • Status: Expired due to Term
First Claim
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1. A control method for a vehicle drive system in which an engine and either one of a generator and motor are connected to a drive wheel via a continuously variable transmission, comprising the steps of:

  • detecting a running state of said vehicle,determining whether or not the vehicle is coasting from said running state,setting a target value of a rotation torque of said drive wheel during coasting,calculating a real rotation torque of said drive wheel during coasting based on said running state, andcontrolling said either one of said generator and motor so that said real torque coincides with said target torque.

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