초록 ▼

A vehicle transmission system is provided which comprises, in combination, a vehicle transmission and an electronic control system for converting input signals thereto related to operating conditions of the transmission to output control signals for the transmission in accordance with a predetermine

A vehicle transmission system is provided which comprises, in combination, a vehicle transmission and an electronic control system for converting input signals thereto related to operating conditions of the transmission to output control signals for the transmission in accordance with a predetermined set of criteria. The electronic control system senses a plurality of operating conditions of the transmission and produces digital input signals in accordance therewith, and includes a microprocessor for directly monitoring the state of the digital input signals, a programmable read-only memory connected to the microprocessor, a timing set-up for directly delivering clock pulses to the microprocessor, an output arrangement, connected to the microprocessor and including a latch, for producing output control signals, an addressing unit for coordinating the operation of the programmable read-only memory and the latch under the control of the microprocessor, and a random access memory for storing the states of signals being processed and enabling arithmetical operations to be performed with the stored signal states. A movement sensor senses shaft speeds so as to produce at least one of the digital input signals. The programmable read-only memory stores a series of coded instructions for repetitively controlling the operation of the microprocessor such that, on the basis of the input signals, output signals are produced which are transmitted to electromechanical operators, e.g., solenoid valves or relays, which control the operation of the transmission.

대표청구항 ▼

A vehicle transmission system comprising, in combination, a vehicle transmission and an electronic control system for controlling said transmission by converting input signals thereto related to operating conditions of the transmission into output control signals for said transmission in accordance

A vehicle transmission system comprising, in combination, a vehicle transmission and an electronic control system for controlling said transmission by converting input signals thereto related to operating conditions of the transmission into output control signals for said transmission in accordance with a predetermined set of criteria, said electronic control system comprising input means for sensing a plurality of transmission operating conditions and producing input signals comprising pulses in accordance therewith, microprocessor means for monitoring the states of said input signals, programmable read-only memory means connected to said microprocessor means, timing means connected to said microprocessor means for directly delivering clock pulses to the microprocessor means, output means, connected to said microprocessor and including latch means, for producing output control signals under the control of said microprocessor means, and addressing means for synchronizing the operation of said programmable read-only memory means and said latch means under the control of said microprocessor means, said electronic control system further comprising electro-mechanical means responsive to said output signals for controlling the operation of said vehicle transmission.