Saddle riding vehicle

Patent metadata

Field	Value
Publication number	US-11760435-B2
Application number	US-202117208010-A
Country	US
Kind code	B2
Filing date	Mar 22, 2021
Priority date	Mar 30, 2020
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A saddle riding vehicle includes an internal combustion engine having a crankshaft, a starter motor having a rotary shaft connected to the crankshaft, a main shaft connected to the crankshaft, a countershaft connected to the main shaft and configured to transmit power to a driving wheel, a battery configured to supply electric power to the starter motor, a rotation detector configured to detect a rotation state of the crankshaft, an acquisition part configured to acquire a rotational speed on the basis of the rotation state detected by the rotation detector, and a controller configured to stop the starter motor in a case the rotational speed is equal to or smaller than first threshold in a state in which the rotary shaft, the crankshaft, the main shaft and the countershaft are connected.

First claim

What is claimed is:

1. A saddle riding vehicle comprising:
an internal combustion engine having a crankshaft;
a starter motor having a rotary shaft connected to the crankshaft;
a main shaft connected to the crankshaft;
a countershaft connected to the main shaft and configured to transmit power to a driving wheel;
a battery configured to supply electric power to the starter motor;
a rotation detector configured to detect a rotation state of the crankshaft;
an acquisition part configured to acquire a rotational speed on the basis of the rotation state detected by the rotation detector; and
a controller configured to stop the starter motor in a case the rotational speed is equal to or smaller than a first threshold in a state in which the rotary shaft, the crankshaft, the main shaft and the countershaft are connected.

2. The saddle riding vehicle according to claim 1 , wherein the controller stops the starter motor in a case the rotational speed is included in a first zone that is equal to or smaller than the first threshold and that is greater than a second threshold, which is smaller than the first threshold, and in a case a predetermined condition is satisfied; and
stops the starter motor regardless of the predetermined condition in a case the rotational speed is included in a second zone that is equal to or smaller than the second threshold.

3. The saddle riding vehicle according to claim 2 , wherein the predetermined condition is a case in which an integrated value, which is obtained by integrating a load state quantity according to the rotational speed, is greater than a predetermined load threshold.

4. The saddle riding vehicle according to claim 3 , wherein the controller sets the load state quantity as a state quantity that increases as the rotational speed decreases.

5. The saddle riding vehicle according to claim 4 , wherein the controller initializes the integrated value to zero in a case a state in which the rotational speed is greater than the first threshold continues for a predetermined time or more.

6. The saddle riding vehicle according to claim 1 , wherein the controller acquires a current of the starter motor on the basis of the rotational speed.

7. The saddle riding vehicle according to claim 2 , wherein the controller acquires a current of the starter motor on the basis of the rotational speed.

8. The saddle riding vehicle according to claim 3 , wherein the controller acquires a current of the starter motor on the basis of the rotational speed.

9. The saddle riding vehicle according to claim 4 , wherein the controller acquires a current of the starter motor on the basis of the rotational speed.

10. The saddle riding vehicle according to claim 5 , wherein the controller acquires a current of the starter motor on the basis of the rotational speed.

Assignees

• Honda Motor Co Ltd

Inventors

• Takeuchi Yoshiaki
• Yashiro Tomohiko

Classifications

• B62J99/00 Primary

  Subject matter not provided for in other groups of this subclass · CPC title

• B62J45/413 Primary

  Rotation sensors · CPC title

• B62M7/00

  Motorcycles characterised by position of motor or engine (rider propulsion with addition source of power, e.g. auxiliary combustion engine or electric motor B62M6/00; frames characterised by position of engine B62K11/00) · CPC title

• B62M7/02

  with engine between front and rear wheels · CPC title

• B62M25/00

  Actuators for gearing speed-change mechanisms specially adapted for cycles (rider operated controls for cycles in general B62K23/00; gearing speed change mechanisms F16H) · CPC title