The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2017
Filed:
Sep. 30, 2014
Hitachi Construction Machinery Co., Ltd., Taito-ku, Tokyo, JP;
Shinjiro Saito, Kasumigaura, JP;
Hidefumi Ishimoto, Toride, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
An autonomous mode controller () that outputs an acceleration command (SAa), a braking command (SBa) and a torque command (Ta) is connected to a steering actuator () and a traveling drive unit (). The steering actuator () generates combined torque (T) based upon steering torque (Tm) from a steering handle () and the torque command (Ta), and controls a steering angle (θ) of a vehicle based upon the combined torque (T). The traveling drive unit () selects a larger one of an acceleration command (SAm) by an accelerator pedal () and the acceleration command (SAa) as an acceleration command (SA), and selects a larger one of a braking command (SBm) by a brake pedal () and the acceleration command (SBa) as a braking command (SB). The traveling drive unit () controls a vehicle speed based upon the acceleration command (SA) and the braking command (SB).