Speed responsive systems
US4140202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1977 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Jun 15, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W30/18063
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In an electronic speed responsive system for a motor vehicle, a first voltage proportional to an actual speed of the vehicle is compared with a reference voltage representing a desired cruise speed in order to produce an output error signal related to the difference between said first voltage and said reference voltage, the desired cruise speed is stored in a memory, and a control logic and safety circuit for rendering the system operative and inoperative has a memory cancel facility which cancels the previously memorized cruise speed stored in the memory when a driver of the vehicle makes an action associated with bringing the vehicle into, or preparatory to driving the vehicle from, a parked condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.