| 摘要 |
<P>PROBLEM TO BE SOLVED: To control brake fluid pressure, even if a zero-point of a master cylinder pressure sensor cannot be corrected. <P>SOLUTION: When a brake operation acquisition unit 121 acquires information that brake is not in operation, a zero-point correction unit 122 executes zero-point correction, a brake assist control means 120 executes brake assist control on the basis of the master cylinder pressure based on the corrected zero point. When the brake operation acquisition unit 121 cannot acquire information whether the brake is in operation or not, the brake assist control means 120 executes the brake assist control on the basis of the master cylinder pressure obtained when the zero point is set as an upper limit value in a range where the zero point changes in a sensor signal value indicated by a pressure sensor 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
